./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:23:48,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:23:48,865 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 11:23:48,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:23:48,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:23:48,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:23:48,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:23:48,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:23:48,896 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:23:48,896 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:23:48,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:23:48,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:23:48,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:23:48,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:23:48,898 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:23:48,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:23:48,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:23:48,900 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:23:48,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 11:23:48,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:23:48,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:23:48,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:23:48,902 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:23:48,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:23:48,903 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:23:48,903 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:23:48,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:23:48,904 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:23:48,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:23:48,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:23:48,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:23:48,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:23:48,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:23:48,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:23:48,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:23:48,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:23:48,908 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 11:23:48,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 11:23:48,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:23:48,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:23:48,910 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:23:48,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:23:48,911 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d [2024-11-18 11:23:49,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:23:49,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:23:49,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:23:49,173 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:23:49,173 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:23:49,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float5.c [2024-11-18 11:23:50,634 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:23:50,819 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:23:50,821 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float5.c [2024-11-18 11:23:50,830 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6617577ec/44f2d57dd4ab4e5d8d410c710913fdea/FLAGc944bb091 [2024-11-18 11:23:51,202 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6617577ec/44f2d57dd4ab4e5d8d410c710913fdea [2024-11-18 11:23:51,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:23:51,205 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:23:51,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:23:51,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:23:51,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:23:51,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d845093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51, skipping insertion in model container [2024-11-18 11:23:51,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,232 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:23:51,407 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2024-11-18 11:23:51,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:23:51,423 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:23:51,437 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2024-11-18 11:23:51,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:23:51,455 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:23:51,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51 WrapperNode [2024-11-18 11:23:51,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:23:51,457 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:23:51,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:23:51,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:23:51,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,483 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2024-11-18 11:23:51,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:23:51,484 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:23:51,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:23:51,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:23:51,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,494 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,501 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 11:23:51,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,506 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:23:51,509 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:23:51,509 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:23:51,509 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:23:51,510 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (1/1) ... [2024-11-18 11:23:51,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:23:51,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:23:51,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:23:51,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:23:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:23:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:23:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:23:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 11:23:51,638 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:23:51,640 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:23:51,700 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-18 11:23:51,701 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:23:51,711 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:23:51,711 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 11:23:51,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:51 BoogieIcfgContainer [2024-11-18 11:23:51,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:23:51,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:23:51,718 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:23:51,721 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:23:51,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:23:51" (1/3) ... [2024-11-18 11:23:51,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56608d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:51, skipping insertion in model container [2024-11-18 11:23:51,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:51" (2/3) ... [2024-11-18 11:23:51,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56608d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:51, skipping insertion in model container [2024-11-18 11:23:51,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:51" (3/3) ... [2024-11-18 11:23:51,725 INFO L112 eAbstractionObserver]: Analyzing ICFG float5.c [2024-11-18 11:23:51,740 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:23:51,740 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:23:51,798 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:23:51,804 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@4cc95726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:23:51,804 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:23:51,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:23:51,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-18 11:23:51,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:51,813 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-18 11:23:51,814 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:51,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:51,821 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2024-11-18 11:23:51,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:23:51,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30237946] [2024-11-18 11:23:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:51,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:23:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:23:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:23:51,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:23:51,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30237946] [2024-11-18 11:23:51,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30237946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:23:51,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:23:51,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:23:51,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871976428] [2024-11-18 11:23:51,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:23:51,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:23:51,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:23:52,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:23:52,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:23:52,009 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-18 11:23:52,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:23:52,021 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2024-11-18 11:23:52,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:23:52,023 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) Word has length 6 [2024-11-18 11:23:52,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:23:52,029 INFO L225 Difference]: With dead ends: 17 [2024-11-18 11:23:52,030 INFO L226 Difference]: Without dead ends: 7 [2024-11-18 11:23:52,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:23:52,038 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:23:52,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:23:52,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2024-11-18 11:23:52,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-18 11:23:52,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 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) [2024-11-18 11:23:52,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2024-11-18 11:23:52,068 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2024-11-18 11:23:52,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:23:52,068 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2024-11-18 11:23:52,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-18 11:23:52,069 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2024-11-18 11:23:52,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-18 11:23:52,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:52,069 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-18 11:23:52,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 11:23:52,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:52,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:52,071 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2024-11-18 11:23:52,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:23:52,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594685105] [2024-11-18 11:23:52,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:52,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:23:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:23:52,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 11:23:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:23:52,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 11:23:52,110 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 11:23:52,112 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:23:52,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 11:23:52,117 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-18 11:23:52,129 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:23:52,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:23:52 BoogieIcfgContainer [2024-11-18 11:23:52,135 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:23:52,136 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:23:52,136 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:23:52,137 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:23:52,138 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:51" (3/4) ... [2024-11-18 11:23:52,140 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 11:23:52,142 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:23:52,143 INFO L158 Benchmark]: Toolchain (without parser) took 937.34ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 80.1MB in the beginning and 128.7MB in the end (delta: -48.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:23:52,143 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:23:52,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.04ms. Allocated memory is still 132.1MB. Free memory was 79.8MB in the beginning and 67.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 11:23:52,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.66ms. Allocated memory is still 132.1MB. Free memory was 67.2MB in the beginning and 65.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:23:52,146 INFO L158 Benchmark]: Boogie Preprocessor took 24.33ms. Allocated memory is still 132.1MB. Free memory was 65.9MB in the beginning and 64.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:23:52,148 INFO L158 Benchmark]: RCFGBuilder took 207.03ms. Allocated memory is still 132.1MB. Free memory was 64.2MB in the beginning and 54.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 11:23:52,149 INFO L158 Benchmark]: TraceAbstraction took 417.67ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 54.6MB in the beginning and 129.6MB in the end (delta: -75.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:23:52,149 INFO L158 Benchmark]: Witness Printer took 6.29ms. Allocated memory is still 174.1MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:23:52,151 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.04ms. Allocated memory is still 132.1MB. Free memory was 79.8MB in the beginning and 67.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.66ms. Allocated memory is still 132.1MB. Free memory was 67.2MB in the beginning and 65.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.33ms. Allocated memory is still 132.1MB. Free memory was 65.9MB in the beginning and 64.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 207.03ms. Allocated memory is still 132.1MB. Free memory was 64.2MB in the beginning and 54.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 417.67ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 54.6MB in the beginning and 129.6MB in the end (delta: -75.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.29ms. Allocated memory is still 174.1MB. Free memory is still 128.7MB. 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: 14]: 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 14, overapproximation of someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L8] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L8] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L10] COND FALSE !(!(a==1 || a==0.5 || a==2 || a==3 || a==0.1)) [L11] b=a [L12] a/=2 [L13] a*=2 [L14] COND TRUE !(a==b) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-18 11:23:52,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:23:54,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:23:54,462 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 11:23:54,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:23:54,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:23:54,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:23:54,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:23:54,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:23:54,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:23:54,508 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:23:54,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:23:54,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:23:54,509 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:23:54,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:23:54,511 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:23:54,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:23:54,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:23:54,513 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:23:54,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:23:54,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:23:54,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:23:54,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:23:54,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:23:54,515 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 11:23:54,515 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 11:23:54,516 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:23:54,516 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 11:23:54,516 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:23:54,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:23:54,517 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:23:54,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:23:54,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:23:54,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:23:54,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:23:54,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:23:54,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:23:54,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:23:54,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:23:54,519 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 11:23:54,519 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 11:23:54,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:23:54,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:23:54,521 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:23:54,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:23:54,521 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d [2024-11-18 11:23:54,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:23:54,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:23:54,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:23:54,878 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:23:54,879 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:23:54,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float5.c [2024-11-18 11:23:56,430 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:23:56,635 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:23:56,636 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float5.c [2024-11-18 11:23:56,644 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b831e8dc5/6be59635575d4c2db8b4fe8d85afcfd1/FLAGc7fde5ed9 [2024-11-18 11:23:57,014 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b831e8dc5/6be59635575d4c2db8b4fe8d85afcfd1 [2024-11-18 11:23:57,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:23:57,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:23:57,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:23:57,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:23:57,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:23:57,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5027923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57, skipping insertion in model container [2024-11-18 11:23:57,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,045 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:23:57,209 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2024-11-18 11:23:57,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:23:57,223 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:23:57,239 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2024-11-18 11:23:57,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:23:57,261 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:23:57,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57 WrapperNode [2024-11-18 11:23:57,262 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:23:57,263 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:23:57,263 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:23:57,263 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:23:57,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,295 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2024-11-18 11:23:57,295 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:23:57,296 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:23:57,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:23:57,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:23:57,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,308 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,321 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 11:23:57,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,336 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:23:57,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:23:57,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:23:57,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:23:57,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (1/1) ... [2024-11-18 11:23:57,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:23:57,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:23:57,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:23:57,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:23:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:23:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:23:57,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:23:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 11:23:57,491 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:23:57,495 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:23:58,010 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-18 11:23:58,010 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:23:58,021 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:23:58,021 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 11:23:58,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:58 BoogieIcfgContainer [2024-11-18 11:23:58,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:23:58,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:23:58,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:23:58,034 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:23:58,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:23:57" (1/3) ... [2024-11-18 11:23:58,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344744bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:58, skipping insertion in model container [2024-11-18 11:23:58,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:57" (2/3) ... [2024-11-18 11:23:58,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344744bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:58, skipping insertion in model container [2024-11-18 11:23:58,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:58" (3/3) ... [2024-11-18 11:23:58,037 INFO L112 eAbstractionObserver]: Analyzing ICFG float5.c [2024-11-18 11:23:58,052 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:23:58,053 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:23:58,106 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:23:58,115 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@227563d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:23:58,116 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:23:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:23:58,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-18 11:23:58,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:58,127 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-18 11:23:58,128 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:58,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:58,134 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2024-11-18 11:23:58,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:23:58,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233014252] [2024-11-18 11:23:58,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:58,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:58,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:23:58,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:23:58,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-18 11:23:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:23:58,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 11:23:58,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:23:58,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:23:58,270 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:23:58,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:23:58,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233014252] [2024-11-18 11:23:58,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233014252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:23:58,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:23:58,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:23:58,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577586959] [2024-11-18 11:23:58,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:23:58,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:23:58,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:23:58,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:23:58,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:23:58,298 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-18 11:23:58,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:23:58,310 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2024-11-18 11:23:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:23:58,313 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) Word has length 6 [2024-11-18 11:23:58,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:23:58,319 INFO L225 Difference]: With dead ends: 17 [2024-11-18 11:23:58,320 INFO L226 Difference]: Without dead ends: 7 [2024-11-18 11:23:58,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:23:58,325 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:23:58,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:23:58,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2024-11-18 11:23:58,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-18 11:23:58,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 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) [2024-11-18 11:23:58,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2024-11-18 11:23:58,359 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2024-11-18 11:23:58,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:23:58,359 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2024-11-18 11:23:58,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-18 11:23:58,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2024-11-18 11:23:58,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-18 11:23:58,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:58,360 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-18 11:23:58,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-18 11:23:58,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:58,562 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:58,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:58,562 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2024-11-18 11:23:58,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:23:58,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244709870] [2024-11-18 11:23:58,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:58,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:58,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:23:58,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:23:58,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-18 11:23:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:23:58,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-18 11:23:58,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:24:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:24:05,469 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:24:05,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:24:05,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244709870] [2024-11-18 11:24:05,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244709870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:24:05,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:24:05,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 11:24:05,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241103091] [2024-11-18 11:24:05,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:24:05,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 11:24:05,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:24:05,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 11:24:05,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 11:24:05,473 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) [2024-11-18 11:24:16,017 WARN L286 SmtUtils]: Spent 8.35s on a formula simplification. DAG size of input: 33 DAG size of output: 24 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-18 11:24:16,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:24:16,021 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2024-11-18 11:24:16,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 11:24:16,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) Word has length 6 [2024-11-18 11:24:16,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:24:16,022 INFO L225 Difference]: With dead ends: 7 [2024-11-18 11:24:16,022 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 11:24:16,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 11:24:16,024 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 11:24:16,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 11:24:16,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 11:24:16,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 11:24:16,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:24:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 11:24:16,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2024-11-18 11:24:16,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:24:16,028 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 11:24:16,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) [2024-11-18 11:24:16,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 11:24:16,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 11:24:16,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:24:16,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-18 11:24:16,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:24:16,235 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-18 11:24:16,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 11:24:16,241 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:24:16,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:24:16 BoogieIcfgContainer [2024-11-18 11:24:16,247 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:24:16,248 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:24:16,248 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:24:16,248 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:24:16,249 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:58" (3/4) ... [2024-11-18 11:24:16,252 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 11:24:16,258 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-18 11:24:16,258 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 11:24:16,259 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 11:24:16,259 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 11:24:16,330 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 11:24:16,330 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 11:24:16,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:24:16,331 INFO L158 Benchmark]: Toolchain (without parser) took 19313.64ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 33.0MB in the beginning and 45.3MB in the end (delta: -12.3MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2024-11-18 11:24:16,331 INFO L158 Benchmark]: CDTParser took 1.46ms. Allocated memory is still 50.3MB. Free memory was 32.6MB in the beginning and 32.5MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:24:16,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.07ms. Allocated memory is still 69.2MB. Free memory was 33.0MB in the beginning and 42.2MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 11:24:16,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.62ms. Allocated memory is still 69.2MB. Free memory was 42.2MB in the beginning and 40.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:24:16,332 INFO L158 Benchmark]: Boogie Preprocessor took 47.22ms. Allocated memory is still 69.2MB. Free memory was 40.6MB in the beginning and 38.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:24:16,332 INFO L158 Benchmark]: RCFGBuilder took 678.59ms. Allocated memory is still 69.2MB. Free memory was 38.9MB in the beginning and 29.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 11:24:16,333 INFO L158 Benchmark]: TraceAbstraction took 18223.35ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 28.9MB in the beginning and 49.7MB in the end (delta: -20.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:24:16,333 INFO L158 Benchmark]: Witness Printer took 82.02ms. Allocated memory is still 83.9MB. Free memory was 49.5MB in the beginning and 45.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 11:24:16,335 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.46ms. Allocated memory is still 50.3MB. Free memory was 32.6MB in the beginning and 32.5MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.07ms. Allocated memory is still 69.2MB. Free memory was 33.0MB in the beginning and 42.2MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.62ms. Allocated memory is still 69.2MB. Free memory was 42.2MB in the beginning and 40.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.22ms. Allocated memory is still 69.2MB. Free memory was 40.6MB in the beginning and 38.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 678.59ms. Allocated memory is still 69.2MB. Free memory was 38.9MB in the beginning and 29.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 18223.35ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 28.9MB in the beginning and 49.7MB in the end (delta: -20.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 82.02ms. Allocated memory is still 83.9MB. Free memory was 49.5MB in the beginning and 45.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 76 SizeOfPredicates, 1 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-18 11:24:16,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE