./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i --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/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i -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 9c42f4f2be0dcf024bccd221a1bf3d1e29db98dcd801b03fa6d425f50f1c2522 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 22:56:50,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 22:56:50,310 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 22:56:50,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 22:56:50,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 22:56:50,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 22:56:50,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 22:56:50,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 22:56:50,330 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 22:56:50,330 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 22:56:50,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 22:56:50,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 22:56:50,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 22:56:50,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 22:56:50,331 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 22:56:50,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 22:56:50,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 22:56:50,332 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 22:56:50,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 22:56:50,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 22:56:50,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 22:56:50,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 22:56:50,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 22:56:50,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 22:56:50,334 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 22:56:50,334 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 22:56:50,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 22:56:50,334 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 22:56:50,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 22:56:50,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 22:56:50,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 22:56:50,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 22:56:50,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:56:50,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 22:56:50,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 22:56:50,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 22:56:50,336 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 22:56:50,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 22:56:50,337 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 22:56:50,337 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 22:56:50,337 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 22:56:50,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 22:56:50,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c42f4f2be0dcf024bccd221a1bf3d1e29db98dcd801b03fa6d425f50f1c2522 [2024-11-18 22:56:50,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 22:56:50,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 22:56:50,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 22:56:50,564 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 22:56:50,564 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 22:56:50,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i [2024-11-18 22:56:51,808 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 22:56:51,971 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 22:56:51,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i [2024-11-18 22:56:51,979 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d47f4cca5/5445ab88d0d14ec9a854a6867067c735/FLAGa281302f0 [2024-11-18 22:56:52,362 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d47f4cca5/5445ab88d0d14ec9a854a6867067c735 [2024-11-18 22:56:52,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 22:56:52,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 22:56:52,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 22:56:52,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 22:56:52,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 22:56:52,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441c6590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52, skipping insertion in model container [2024-11-18 22:56:52,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 22:56:52,577 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/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i[915,928] [2024-11-18 22:56:52,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:56:52,623 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 22:56:52,633 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/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i[915,928] [2024-11-18 22:56:52,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:56:52,672 INFO L204 MainTranslator]: Completed translation [2024-11-18 22:56:52,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52 WrapperNode [2024-11-18 22:56:52,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 22:56:52,676 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 22:56:52,676 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 22:56:52,676 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 22:56:52,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,715 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 96 [2024-11-18 22:56:52,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 22:56:52,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 22:56:52,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 22:56:52,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 22:56:52,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,730 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,743 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 22:56:52,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 22:56:52,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 22:56:52,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 22:56:52,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 22:56:52,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (1/1) ... [2024-11-18 22:56:52,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:56:52,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:56:52,804 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 22:56:52,807 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 22:56:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 22:56:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 22:56:52,851 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 22:56:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 22:56:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 22:56:52,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 22:56:52,934 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 22:56:52,937 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 22:56:53,210 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-18 22:56:53,210 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 22:56:53,220 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 22:56:53,220 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 22:56:53,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:56:53 BoogieIcfgContainer [2024-11-18 22:56:53,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 22:56:53,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 22:56:53,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 22:56:53,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 22:56:53,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:56:52" (1/3) ... [2024-11-18 22:56:53,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1018d2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:56:53, skipping insertion in model container [2024-11-18 22:56:53,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:52" (2/3) ... [2024-11-18 22:56:53,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1018d2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:56:53, skipping insertion in model container [2024-11-18 22:56:53,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:56:53" (3/3) ... [2024-11-18 22:56:53,228 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-58.i [2024-11-18 22:56:53,241 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 22:56:53,241 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 22:56:53,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 22:56:53,296 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;@79ccafcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 22:56:53,297 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 22:56:53,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 22:56:53,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 22:56:53,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:56:53,310 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:56:53,311 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:56:53,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:56:53,316 INFO L85 PathProgramCache]: Analyzing trace with hash -576999655, now seen corresponding path program 1 times [2024-11-18 22:56:53,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:56:53,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232102398] [2024-11-18 22:56:53,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:56:53,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:56:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-18 22:56:53,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589140855] [2024-11-18 22:56:53,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:56:53,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:56:53,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:56:53,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 22:56:53,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 22:56:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:56:53,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-18 22:56:53,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:56:54,465 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 182 proven. 27 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-18 22:56:54,466 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 22:56:54,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:56:54,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232102398] [2024-11-18 22:56:54,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-18 22:56:54,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589140855] [2024-11-18 22:56:54,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589140855] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:56:54,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-18 22:56:54,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-18 22:56:54,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141900682] [2024-11-18 22:56:54,617 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-18 22:56:54,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 22:56:54,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:56:54,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 22:56:54,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=166, Unknown=1, NotChecked=0, Total=210 [2024-11-18 22:56:54,647 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-18 22:56:55,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:56:55,244 INFO L93 Difference]: Finished difference Result 134 states and 224 transitions. [2024-11-18 22:56:55,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 22:56:55,247 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 81 [2024-11-18 22:56:55,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:56:55,254 INFO L225 Difference]: With dead ends: 134 [2024-11-18 22:56:55,255 INFO L226 Difference]: Without dead ends: 92 [2024-11-18 22:56:55,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=572, Unknown=1, NotChecked=0, Total=756 [2024-11-18 22:56:55,260 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 93 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 47 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:56:55,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 239 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 234 Invalid, 4 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:56:55,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-18 22:56:55,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 75. [2024-11-18 22:56:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.173913043478261) internal successors, (54), 46 states have internal predecessors, (54), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-18 22:56:55,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 102 transitions. [2024-11-18 22:56:55,301 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 102 transitions. Word has length 81 [2024-11-18 22:56:55,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:56:55,302 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 102 transitions. [2024-11-18 22:56:55,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-18 22:56:55,302 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 102 transitions. [2024-11-18 22:56:55,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 22:56:55,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:56:55,304 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:56:55,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 22:56:55,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 22:56:55,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:56:55,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:56:55,507 INFO L85 PathProgramCache]: Analyzing trace with hash 103058715, now seen corresponding path program 1 times [2024-11-18 22:56:55,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:56:55,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349493010] [2024-11-18 22:56:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:56:55,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:56:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:56:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:56:56,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:56:56,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349493010] [2024-11-18 22:56:56,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349493010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:56:56,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:56:56,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 22:56:56,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607549631] [2024-11-18 22:56:56,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:56:56,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 22:56:56,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:56:56,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 22:56:56,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 22:56:56,630 INFO L87 Difference]: Start difference. First operand 75 states and 102 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:56:56,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:56:56,895 INFO L93 Difference]: Finished difference Result 103 states and 134 transitions. [2024-11-18 22:56:56,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 22:56:56,896 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81 [2024-11-18 22:56:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:56:56,898 INFO L225 Difference]: With dead ends: 103 [2024-11-18 22:56:56,898 INFO L226 Difference]: Without dead ends: 101 [2024-11-18 22:56:56,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-18 22:56:56,899 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 40 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:56:56,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 273 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:56:56,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-18 22:56:56,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 82. [2024-11-18 22:56:56,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 53 states have internal predecessors, (63), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-18 22:56:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 111 transitions. [2024-11-18 22:56:56,917 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 111 transitions. Word has length 81 [2024-11-18 22:56:56,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:56:56,917 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 111 transitions. [2024-11-18 22:56:56,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:56:56,917 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 111 transitions. [2024-11-18 22:56:56,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 22:56:56,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:56:56,922 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:56:56,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 22:56:56,922 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:56:56,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:56:56,923 INFO L85 PathProgramCache]: Analyzing trace with hash 104905757, now seen corresponding path program 1 times [2024-11-18 22:56:56,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:56:56,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211879203] [2024-11-18 22:56:56,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:56:56,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:56:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-18 22:56:56,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1887999309] [2024-11-18 22:56:56,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:56:56,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:56:56,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:56:56,968 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 22:56:56,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 22:56:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 22:56:57,053 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 22:56:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 22:56:57,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 22:56:57,113 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 22:56:57,114 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 22:56:57,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 22:56:57,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-18 22:56:57,320 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-18 22:56:57,374 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 22:56:57,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:56:57 BoogieIcfgContainer [2024-11-18 22:56:57,377 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 22:56:57,377 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 22:56:57,379 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 22:56:57,379 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 22:56:57,379 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:56:53" (3/4) ... [2024-11-18 22:56:57,385 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 22:56:57,387 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 22:56:57,390 INFO L158 Benchmark]: Toolchain (without parser) took 5024.56ms. Allocated memory was 121.6MB in the beginning and 186.6MB in the end (delta: 65.0MB). Free memory was 52.4MB in the beginning and 99.3MB in the end (delta: -46.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-11-18 22:56:57,390 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 121.6MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 22:56:57,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.05ms. Allocated memory was 121.6MB in the beginning and 155.2MB in the end (delta: 33.6MB). Free memory was 52.2MB in the beginning and 117.6MB in the end (delta: -65.3MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2024-11-18 22:56:57,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.28ms. Allocated memory is still 155.2MB. Free memory was 116.6MB in the beginning and 114.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 22:56:57,391 INFO L158 Benchmark]: Boogie Preprocessor took 47.10ms. Allocated memory is still 155.2MB. Free memory was 114.4MB in the beginning and 110.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 22:56:57,391 INFO L158 Benchmark]: RCFGBuilder took 455.29ms. Allocated memory is still 155.2MB. Free memory was 110.2MB in the beginning and 93.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 22:56:57,392 INFO L158 Benchmark]: TraceAbstraction took 4153.85ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 93.5MB in the beginning and 99.3MB in the end (delta: -5.8MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2024-11-18 22:56:57,392 INFO L158 Benchmark]: Witness Printer took 11.76ms. Allocated memory is still 186.6MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 22:56:57,396 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 121.6MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.05ms. Allocated memory was 121.6MB in the beginning and 155.2MB in the end (delta: 33.6MB). Free memory was 52.2MB in the beginning and 117.6MB in the end (delta: -65.3MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.28ms. Allocated memory is still 155.2MB. Free memory was 116.6MB in the beginning and 114.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.10ms. Allocated memory is still 155.2MB. Free memory was 114.4MB in the beginning and 110.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 455.29ms. Allocated memory is still 155.2MB. Free memory was 110.2MB in the beginning and 93.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4153.85ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 93.5MB in the beginning and 99.3MB in the end (delta: -5.8MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * Witness Printer took 11.76ms. Allocated memory is still 186.6MB. Free memory is still 99.3MB. 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: 19]: 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 90. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 64; [L23] signed long int var_1_2 = 8; [L24] unsigned char var_1_3 = 25; [L25] unsigned char var_1_4 = 100; [L26] float var_1_5 = 99999999999.5; [L27] unsigned char var_1_6 = 4; [L28] float var_1_7 = 63.75; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_10 = 1; [L31] unsigned char last_1_var_1_1 = 64; [L32] unsigned char last_1_var_1_9 = 0; VAL [isInitial=0, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=8, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] CALL updateLastVariables() [L86] last_1_var_1_1 = var_1_1 [L87] last_1_var_1_9 = var_1_9 VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=8, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L97] RET updateLastVariables() [L98] CALL updateVariables() [L66] var_1_2 = __VERIFIER_nondet_long() [L67] CALL assume_abort_if_not(var_1_2 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L67] RET assume_abort_if_not(var_1_2 >= -2147483648) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L68] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L68] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L69] var_1_3 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L70] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L71] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L71] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L72] var_1_4 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_4 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L73] RET assume_abort_if_not(var_1_4 >= 63) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L74] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L74] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L75] var_1_6 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L76] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_6 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L77] RET assume_abort_if_not(var_1_6 <= 255) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_7=255/4, var_1_9=0] [L78] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_7=255/4, var_1_9=0] [L79] var_1_7 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L80] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L81] var_1_10 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L82] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L83] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L98] RET updateVariables() [L99] CALL step() [L36] signed long int stepLocal_3 = last_1_var_1_1; [L37] signed long int stepLocal_2 = var_1_3 / var_1_6; VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_2=0, stepLocal_3=64, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L38] COND TRUE var_1_3 < stepLocal_3 VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_2=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L39] COND FALSE !(var_1_4 < stepLocal_2) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L49] signed long int stepLocal_1 = var_1_2; [L50] signed long int stepLocal_0 = var_1_2; VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, stepLocal_1=-256, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L51] COND TRUE stepLocal_1 <= -256 [L52] var_1_1 = ((((var_1_3) < (((var_1_4 - 8) + 5))) ? (var_1_3) : (((var_1_4 - 8) + 5)))) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L60] unsigned char stepLocal_4 = (var_1_1 + 64u) != var_1_4; VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, stepLocal_4=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L61] COND FALSE !((var_1_5 >= var_1_7) || stepLocal_4) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L99] RET step() [L100] CALL, EXPR property() [L90-L91] return (((var_1_2 <= -256) ? (var_1_1 == ((unsigned char) ((((var_1_3) < (((var_1_4 - 8) + 5))) ? (var_1_3) : (((var_1_4 - 8) + 5)))))) : ((var_1_4 <= var_1_2) ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3)))) && ((var_1_3 < last_1_var_1_1) ? ((var_1_4 < (var_1_3 / var_1_6)) ? (var_1_5 == ((float) (var_1_7 - 16.55f))) : 1) : (last_1_var_1_9 ? (var_1_5 == ((float) var_1_7)) : (var_1_5 == ((float) var_1_7))))) && (((var_1_5 >= var_1_7) || ((var_1_1 + 64u) != var_1_4)) ? (var_1_9 == ((unsigned char) var_1_10)) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 512 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 431 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 352 IncrementalHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 81 mSDtfsCounter, 352 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=2, InterpolantAutomatonStates: 26, 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, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 405 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 160 ConstructedInterpolants, 2 QuantifiedInterpolants, 1069 SizeOfPredicates, 5 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 501/528 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 22:56:57,420 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/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i -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 9c42f4f2be0dcf024bccd221a1bf3d1e29db98dcd801b03fa6d425f50f1c2522 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 22:56:59,470 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 22:56:59,534 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 22:56:59,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 22:56:59,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 22:56:59,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 22:56:59,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 22:56:59,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 22:56:59,580 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 22:56:59,580 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 22:56:59,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 22:56:59,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 22:56:59,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 22:56:59,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 22:56:59,582 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 22:56:59,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 22:56:59,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 22:56:59,585 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 22:56:59,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 22:56:59,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 22:56:59,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 22:56:59,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 22:56:59,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 22:56:59,587 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 22:56:59,587 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 22:56:59,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 22:56:59,587 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 22:56:59,588 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 22:56:59,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 22:56:59,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 22:56:59,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 22:56:59,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 22:56:59,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 22:56:59,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 22:56:59,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:56:59,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 22:56:59,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 22:56:59,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 22:56:59,591 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 22:56:59,591 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 22:56:59,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 22:56:59,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 22:56:59,592 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 22:56:59,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 22:56:59,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c42f4f2be0dcf024bccd221a1bf3d1e29db98dcd801b03fa6d425f50f1c2522 [2024-11-18 22:56:59,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 22:56:59,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 22:56:59,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 22:56:59,920 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 22:56:59,920 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 22:56:59,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i [2024-11-18 22:57:01,222 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 22:57:01,402 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 22:57:01,403 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i [2024-11-18 22:57:01,415 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af974e463/867124df45ef4c709dcf51a559753c42/FLAG6363ec309 [2024-11-18 22:57:01,794 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af974e463/867124df45ef4c709dcf51a559753c42 [2024-11-18 22:57:01,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 22:57:01,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 22:57:01,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 22:57:01,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 22:57:01,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 22:57:01,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:57:01" (1/1) ... [2024-11-18 22:57:01,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c888a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:01, skipping insertion in model container [2024-11-18 22:57:01,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:57:01" (1/1) ... [2024-11-18 22:57:01,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 22:57:01,985 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/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i[915,928] [2024-11-18 22:57:02,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:57:02,043 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 22:57:02,054 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/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i[915,928] [2024-11-18 22:57:02,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:57:02,082 INFO L204 MainTranslator]: Completed translation [2024-11-18 22:57:02,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02 WrapperNode [2024-11-18 22:57:02,083 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 22:57:02,084 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 22:57:02,084 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 22:57:02,084 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 22:57:02,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (1/1) ... [2024-11-18 22:57:02,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (1/1) ... [2024-11-18 22:57:02,130 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2024-11-18 22:57:02,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 22:57:02,131 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 22:57:02,131 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 22:57:02,131 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 22:57:02,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (1/1) ... [2024-11-18 22:57:02,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (1/1) ... [2024-11-18 22:57:02,147 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (1/1) ... [2024-11-18 22:57:02,161 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 22:57:02,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (1/1) ... [2024-11-18 22:57:02,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (1/1) ... [2024-11-18 22:57:02,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (1/1) ... [2024-11-18 22:57:02,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (1/1) ... [2024-11-18 22:57:02,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (1/1) ... [2024-11-18 22:57:02,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (1/1) ... [2024-11-18 22:57:02,178 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 22:57:02,179 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 22:57:02,179 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 22:57:02,179 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 22:57:02,180 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (1/1) ... [2024-11-18 22:57:02,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:57:02,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:57:02,213 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 22:57:02,222 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 22:57:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 22:57:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 22:57:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 22:57:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 22:57:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 22:57:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 22:57:02,343 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 22:57:02,345 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 22:57:02,704 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-18 22:57:02,704 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 22:57:02,717 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 22:57:02,717 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 22:57:02,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:57:02 BoogieIcfgContainer [2024-11-18 22:57:02,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 22:57:02,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 22:57:02,721 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 22:57:02,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 22:57:02,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:57:01" (1/3) ... [2024-11-18 22:57:02,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edef0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:57:02, skipping insertion in model container [2024-11-18 22:57:02,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:57:02" (2/3) ... [2024-11-18 22:57:02,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edef0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:57:02, skipping insertion in model container [2024-11-18 22:57:02,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:57:02" (3/3) ... [2024-11-18 22:57:02,727 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-58.i [2024-11-18 22:57:02,742 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 22:57:02,743 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 22:57:02,793 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 22:57:02,799 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;@6c7c8c8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 22:57:02,799 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 22:57:02,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 22:57:02,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 22:57:02,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:57:02,811 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:57:02,812 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:57:02,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:57:02,817 INFO L85 PathProgramCache]: Analyzing trace with hash -576999655, now seen corresponding path program 1 times [2024-11-18 22:57:02,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 22:57:02,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896588243] [2024-11-18 22:57:02,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:57:02,830 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 22:57:02,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 22:57:02,832 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 22:57:02,834 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 22:57:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:57:02,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-18 22:57:03,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:57:04,342 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 179 proven. 39 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-18 22:57:04,342 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 22:57:21,304 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 22:57:21,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896588243] [2024-11-18 22:57:21,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [896588243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:57:21,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1400262340] [2024-11-18 22:57:21,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:57:21,306 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-18 22:57:21,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-18 22:57:21,326 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-18 22:57:21,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-18 22:57:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:57:21,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-18 22:57:21,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:57:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 181 proven. 36 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-18 22:57:44,334 INFO L311 TraceCheckSpWp]: Computing backward predicates...