./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 cf1a7837 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_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:28:19,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:28:20,087 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:28:20,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:28:20,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:28:20,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:28:20,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:28:20,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:28:20,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:28:20,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:28:20,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:28:20,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:28:20,137 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:28:20,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:28:20,140 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:28:20,140 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:28:20,141 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:28:20,141 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:28:20,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:28:20,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:28:20,143 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:28:20,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:28:20,144 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:28:20,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:28:20,145 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:28:20,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:28:20,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:28:20,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:28:20,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:28:20,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:28:20,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:28:20,149 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:28:20,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:28:20,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:28:20,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:28:20,150 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:28:20,150 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:28:20,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:28:20,151 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:28:20,151 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2023-11-12 02:28:20,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:28:20,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:28:20,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:28:20,500 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:28:20,501 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:28:20,502 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/float-benchs/nan_float.c [2023-11-12 02:28:23,645 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:28:23,838 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:28:23,839 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/sv-benchmarks/c/float-benchs/nan_float.c [2023-11-12 02:28:23,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/data/5c92961d8/48e0c15e7a064a7da52b22ff3fc63183/FLAGc740ef82a [2023-11-12 02:28:23,861 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/data/5c92961d8/48e0c15e7a064a7da52b22ff3fc63183 [2023-11-12 02:28:23,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:28:23,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:28:23,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:28:23,870 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:28:23,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:28:23,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:28:23" (1/1) ... [2023-11-12 02:28:23,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b811bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:23, skipping insertion in model container [2023-11-12 02:28:23,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:28:23" (1/1) ... [2023-11-12 02:28:23,898 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:28:24,068 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_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2023-11-12 02:28:24,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:28:24,097 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:28:24,112 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_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2023-11-12 02:28:24,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:28:24,131 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:28:24,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24 WrapperNode [2023-11-12 02:28:24,132 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:28:24,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:28:24,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:28:24,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:28:24,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24" (1/1) ... [2023-11-12 02:28:24,153 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24" (1/1) ... [2023-11-12 02:28:24,170 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2023-11-12 02:28:24,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:28:24,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:28:24,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:28:24,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:28:24,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24" (1/1) ... [2023-11-12 02:28:24,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24" (1/1) ... [2023-11-12 02:28:24,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24" (1/1) ... [2023-11-12 02:28:24,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24" (1/1) ... [2023-11-12 02:28:24,187 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24" (1/1) ... [2023-11-12 02:28:24,189 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24" (1/1) ... [2023-11-12 02:28:24,190 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24" (1/1) ... [2023-11-12 02:28:24,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24" (1/1) ... [2023-11-12 02:28:24,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:28:24,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:28:24,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:28:24,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:28:24,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24" (1/1) ... [2023-11-12 02:28:24,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:28:24,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:24,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:24,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:28:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:28:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:28:24,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:28:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:28:24,355 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:28:24,357 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:28:24,502 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:28:24,508 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:28:24,509 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:28:24,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:24 BoogieIcfgContainer [2023-11-12 02:28:24,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:28:24,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:28:24,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:28:24,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:28:24,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:28:23" (1/3) ... [2023-11-12 02:28:24,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df2238b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:28:24, skipping insertion in model container [2023-11-12 02:28:24,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:24" (2/3) ... [2023-11-12 02:28:24,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df2238b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:28:24, skipping insertion in model container [2023-11-12 02:28:24,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:24" (3/3) ... [2023-11-12 02:28:24,522 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float.c [2023-11-12 02:28:24,541 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:28:24,541 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:28:24,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:28:24,597 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=PETRI_NET, 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;@4303ad27, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:28:24,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:28:24,603 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) [2023-11-12 02:28:24,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 02:28:24,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:24,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 02:28:24,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:24,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:24,618 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2023-11-12 02:28:24,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:24,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119611462] [2023-11-12 02:28:24,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:24,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:24,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:28:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:24,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:28:24,773 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:28:24,775 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:28:24,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:28:24,783 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 02:28:24,795 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:28:24,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:28:24 BoogieIcfgContainer [2023-11-12 02:28:24,812 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:28:24,813 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:28:24,813 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:28:24,813 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:28:24,814 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:24" (3/4) ... [2023-11-12 02:28:24,816 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:28:24,818 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:28:24,819 INFO L158 Benchmark]: Toolchain (without parser) took 952.72ms. Allocated memory is still 165.7MB. Free memory was 125.8MB in the beginning and 90.2MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-12 02:28:24,820 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:28:24,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.15ms. Allocated memory is still 165.7MB. Free memory was 125.8MB in the beginning and 115.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:28:24,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.52ms. Allocated memory is still 165.7MB. Free memory was 115.6MB in the beginning and 114.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:28:24,822 INFO L158 Benchmark]: Boogie Preprocessor took 21.97ms. Allocated memory is still 165.7MB. Free memory was 114.0MB in the beginning and 113.1MB in the end (delta: 864.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:28:24,823 INFO L158 Benchmark]: RCFGBuilder took 316.93ms. Allocated memory is still 165.7MB. Free memory was 113.1MB in the beginning and 104.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:28:24,824 INFO L158 Benchmark]: TraceAbstraction took 298.10ms. Allocated memory is still 165.7MB. Free memory was 103.9MB in the beginning and 90.5MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:28:24,824 INFO L158 Benchmark]: Witness Printer took 5.39ms. Allocated memory is still 165.7MB. Free memory was 90.5MB in the beginning and 90.2MB in the end (delta: 282.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:28:24,828 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 121.6MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.15ms. Allocated memory is still 165.7MB. Free memory was 125.8MB in the beginning and 115.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.52ms. Allocated memory is still 165.7MB. Free memory was 115.6MB in the beginning and 114.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.97ms. Allocated memory is still 165.7MB. Free memory was 114.0MB in the beginning and 113.1MB in the end (delta: 864.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.93ms. Allocated memory is still 165.7MB. Free memory was 113.1MB in the beginning and 104.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 298.10ms. Allocated memory is still 165.7MB. Free memory was 103.9MB in the beginning and 90.5MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.39ms. Allocated memory is still 165.7MB. Free memory was 90.5MB in the beginning and 90.2MB in the end (delta: 282.5kB). 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, 9 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=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 could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:28:24,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:28:27,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:28:27,780 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:28:27,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:28:27,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:28:27,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:28:27,862 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:28:27,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:28:27,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:28:27,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:28:27,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:28:27,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:28:27,871 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:28:27,873 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:28:27,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:28:27,874 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:28:27,875 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:28:27,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:28:27,876 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:28:27,877 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:28:27,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:28:27,878 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:28:27,879 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:28:27,879 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:28:27,879 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:28:27,880 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:28:27,880 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:28:27,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:28:27,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:28:27,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:28:27,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:28:27,884 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:28:27,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:28:27,885 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:28:27,885 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:28:27,885 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:28:27,886 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:28:27,886 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:28:27,886 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:28:27,887 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:28:27,888 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:28:27,888 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:28:27,889 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2023-11-12 02:28:28,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:28:28,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:28:28,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:28:28,352 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:28:28,353 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:28:28,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/float-benchs/nan_float.c [2023-11-12 02:28:31,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:28:31,759 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:28:31,759 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/sv-benchmarks/c/float-benchs/nan_float.c [2023-11-12 02:28:31,768 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/data/fa9ee3113/6bf17469b12b4fdcbe146f06155b91e5/FLAG9c931f7cd [2023-11-12 02:28:31,787 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/data/fa9ee3113/6bf17469b12b4fdcbe146f06155b91e5 [2023-11-12 02:28:31,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:28:31,792 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:28:31,793 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:28:31,794 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:28:31,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:28:31,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:28:31" (1/1) ... [2023-11-12 02:28:31,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8b708d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:31, skipping insertion in model container [2023-11-12 02:28:31,802 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:28:31" (1/1) ... [2023-11-12 02:28:31,822 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:28:32,022 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_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2023-11-12 02:28:32,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:28:32,054 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:28:32,069 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_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2023-11-12 02:28:32,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:28:32,093 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:28:32,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32 WrapperNode [2023-11-12 02:28:32,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:28:32,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:28:32,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:28:32,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:28:32,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32" (1/1) ... [2023-11-12 02:28:32,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32" (1/1) ... [2023-11-12 02:28:32,138 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2023-11-12 02:28:32,138 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:28:32,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:28:32,139 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:28:32,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:28:32,149 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32" (1/1) ... [2023-11-12 02:28:32,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32" (1/1) ... [2023-11-12 02:28:32,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32" (1/1) ... [2023-11-12 02:28:32,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32" (1/1) ... [2023-11-12 02:28:32,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32" (1/1) ... [2023-11-12 02:28:32,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32" (1/1) ... [2023-11-12 02:28:32,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32" (1/1) ... [2023-11-12 02:28:32,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32" (1/1) ... [2023-11-12 02:28:32,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:28:32,192 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:28:32,193 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:28:32,193 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:28:32,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32" (1/1) ... [2023-11-12 02:28:32,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:28:32,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:32,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:32,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:28:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:28:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:28:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:28:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:28:32,360 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:28:32,363 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:28:32,495 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:28:32,501 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:28:32,501 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:28:32,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:32 BoogieIcfgContainer [2023-11-12 02:28:32,505 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:28:32,517 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:28:32,517 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:28:32,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:28:32,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:28:31" (1/3) ... [2023-11-12 02:28:32,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489b9a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:28:32, skipping insertion in model container [2023-11-12 02:28:32,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:32" (2/3) ... [2023-11-12 02:28:32,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489b9a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:28:32, skipping insertion in model container [2023-11-12 02:28:32,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:32" (3/3) ... [2023-11-12 02:28:32,524 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float.c [2023-11-12 02:28:32,541 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:28:32,541 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:28:32,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:28:32,594 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=PETRI_NET, 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;@186309a5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:28:32,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:28:32,599 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) [2023-11-12 02:28:32,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 02:28:32,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:32,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 02:28:32,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:32,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:32,612 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2023-11-12 02:28:32,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:28:32,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881659973] [2023-11-12 02:28:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:32,631 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 [2023-11-12 02:28:32,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:28:32,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:28:32,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:28:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:32,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:28:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:32,721 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-12 02:28:32,723 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:28:32,724 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:28:32,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:28:32,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:28:32,943 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 02:28:32,947 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:28:32,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:28:32 BoogieIcfgContainer [2023-11-12 02:28:32,964 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:28:32,967 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:28:32,967 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:28:32,967 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:28:32,968 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:32" (3/4) ... [2023-11-12 02:28:32,970 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-12 02:28:33,019 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:28:33,019 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:28:33,020 INFO L158 Benchmark]: Toolchain (without parser) took 1228.32ms. Allocated memory was 86.0MB in the beginning and 130.0MB in the end (delta: 44.0MB). Free memory was 62.1MB in the beginning and 95.9MB in the end (delta: -33.8MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2023-11-12 02:28:33,021 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 86.0MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:28:33,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.95ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 51.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:28:33,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.07ms. Allocated memory is still 86.0MB. Free memory was 51.4MB in the beginning and 49.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:28:33,025 INFO L158 Benchmark]: Boogie Preprocessor took 51.94ms. Allocated memory is still 86.0MB. Free memory was 49.8MB in the beginning and 48.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:28:33,028 INFO L158 Benchmark]: RCFGBuilder took 313.33ms. Allocated memory is still 86.0MB. Free memory was 48.6MB in the beginning and 39.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:28:33,029 INFO L158 Benchmark]: TraceAbstraction took 447.29ms. Allocated memory is still 130.0MB. Free memory was 109.1MB in the beginning and 97.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:28:33,029 INFO L158 Benchmark]: Witness Printer took 52.36ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 95.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:28:33,035 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 62.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.95ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 51.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.07ms. Allocated memory is still 86.0MB. Free memory was 51.4MB in the beginning and 49.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.94ms. Allocated memory is still 86.0MB. Free memory was 49.8MB in the beginning and 48.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 313.33ms. Allocated memory is still 86.0MB. Free memory was 48.6MB in the beginning and 39.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 447.29ms. Allocated memory is still 130.0MB. Free memory was 109.1MB in the beginning and 97.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 52.36ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 95.9MB in the end (delta: 1.6MB). 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! [2023-11-12 02:28:33,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef6347a-e5eb-465d-b5b2-7c8a91809a69/bin/uautomizer-verify-uTZkv6EMXl/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