./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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-0.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 318f2e3ad64ca294baf1dde289a55f9fb4912d80a16ec862d0adf52a5caea970 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 23:48:11,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:48:11,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 23:48:11,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:48:11,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 23:48:11,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:48:11,779 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 23:48:11,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 23:48:11,780 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 23:48:11,780 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 23:48:11,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:48:11,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 23:48:11,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:48:11,784 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:48:11,784 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 23:48:11,785 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:48:11,785 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:48:11,785 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:48:11,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:48:11,786 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:48:11,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:48:11,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:48:11,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:48:11,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:48:11,791 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:48:11,791 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:48:11,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:48:11,792 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:48:11,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:48:11,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 23:48:11,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 23:48:11,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 23:48:11,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:48:11,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:48:11,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:48:11,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:48:11,794 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 23:48:11,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:48:11,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 23:48:11,798 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 23:48:11,798 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 23:48:11,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 23:48:11,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318f2e3ad64ca294baf1dde289a55f9fb4912d80a16ec862d0adf52a5caea970 [2024-11-08 23:48:12,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:48:12,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:48:12,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:48:12,083 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:48:12,083 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:48:12,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i [2024-11-08 23:48:13,583 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:48:13,801 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:48:13,802 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i [2024-11-08 23:48:13,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36fd4edc7/fb3f4d7ce7694e6bb9b93c17bbc464b8/FLAG88a83dada [2024-11-08 23:48:14,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36fd4edc7/fb3f4d7ce7694e6bb9b93c17bbc464b8 [2024-11-08 23:48:14,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:48:14,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:48:14,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:48:14,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:48:14,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:48:14,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eec6562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14, skipping insertion in model container [2024-11-08 23:48:14,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,186 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:48:14,368 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-0.i[914,927] [2024-11-08 23:48:14,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:48:14,414 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:48:14,426 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-0.i[914,927] [2024-11-08 23:48:14,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:48:14,462 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:48:14,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14 WrapperNode [2024-11-08 23:48:14,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:48:14,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:48:14,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:48:14,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:48:14,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,499 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2024-11-08 23:48:14,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:48:14,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:48:14,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:48:14,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:48:14,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,512 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,525 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]. [2024-11-08 23:48:14,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:48:14,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:48:14,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:48:14,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:48:14,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (1/1) ... [2024-11-08 23:48:14,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:48:14,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:48:14,583 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) [2024-11-08 23:48:14,591 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 [2024-11-08 23:48:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:48:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:48:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:48:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 23:48:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:48:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:48:14,802 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:48:14,808 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:48:15,040 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-08 23:48:15,040 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:48:15,054 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:48:15,054 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:48:15,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:48:15 BoogieIcfgContainer [2024-11-08 23:48:15,055 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:48:15,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 23:48:15,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 23:48:15,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 23:48:15,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:48:14" (1/3) ... [2024-11-08 23:48:15,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bde9d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:48:15, skipping insertion in model container [2024-11-08 23:48:15,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:14" (2/3) ... [2024-11-08 23:48:15,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bde9d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:48:15, skipping insertion in model container [2024-11-08 23:48:15,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:48:15" (3/3) ... [2024-11-08 23:48:15,063 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-0.i [2024-11-08 23:48:15,081 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 23:48:15,081 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 23:48:15,135 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 23:48:15,141 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;@7d2d23c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 23:48:15,142 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 23:48:15,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 23:48:15,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 23:48:15,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:48:15,157 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-08 23:48:15,159 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:48:15,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:48:15,165 INFO L85 PathProgramCache]: Analyzing trace with hash 505783184, now seen corresponding path program 1 times [2024-11-08 23:48:15,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:48:15,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687102784] [2024-11-08 23:48:15,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:48:15,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:48:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:15,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:48:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:15,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:48:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:15,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:48:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:15,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 23:48:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:15,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 23:48:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:15,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 23:48:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:15,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 23:48:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:15,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 23:48:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:15,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 23:48:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:15,477 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 23:48:15,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:48:15,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687102784] [2024-11-08 23:48:15,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687102784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:48:15,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:48:15,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 23:48:15,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479669715] [2024-11-08 23:48:15,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:48:15,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 23:48:15,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:48:15,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 23:48:15,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:48:15,510 INFO L87 Difference]: Start difference. First operand has 44 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 23:48:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:48:15,529 INFO L93 Difference]: Finished difference Result 81 states and 127 transitions. [2024-11-08 23:48:15,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 23:48:15,532 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-08 23:48:15,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:48:15,539 INFO L225 Difference]: With dead ends: 81 [2024-11-08 23:48:15,539 INFO L226 Difference]: Without dead ends: 40 [2024-11-08 23:48:15,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:48:15,548 INFO L432 NwaCegarLoop]: 55 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, 55 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 [2024-11-08 23:48:15,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 23:48:15,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-08 23:48:15,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-08 23:48:15,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 23:48:15,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2024-11-08 23:48:15,600 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 66 [2024-11-08 23:48:15,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:48:15,601 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2024-11-08 23:48:15,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 23:48:15,601 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2024-11-08 23:48:15,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 23:48:15,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:48:15,604 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-08 23:48:15,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 23:48:15,604 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:48:15,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:48:15,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1993124846, now seen corresponding path program 1 times [2024-11-08 23:48:15,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:48:15,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966295884] [2024-11-08 23:48:15,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:48:15,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:48:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:48:15,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:48:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:48:15,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 23:48:15,773 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 23:48:15,775 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 23:48:15,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 23:48:15,779 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 23:48:15,818 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 23:48:15,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 11:48:15 BoogieIcfgContainer [2024-11-08 23:48:15,821 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 23:48:15,822 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:48:15,823 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:48:15,823 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:48:15,823 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:48:15" (3/4) ... [2024-11-08 23:48:15,825 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:48:15,826 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:48:15,827 INFO L158 Benchmark]: Toolchain (without parser) took 1680.05ms. Allocated memory is still 159.4MB. Free memory was 92.8MB in the beginning and 78.1MB in the end (delta: 14.6MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2024-11-08 23:48:15,827 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:48:15,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.07ms. Allocated memory is still 159.4MB. Free memory was 92.6MB in the beginning and 78.1MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 23:48:15,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.40ms. Allocated memory is still 159.4MB. Free memory was 78.1MB in the beginning and 76.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:48:15,829 INFO L158 Benchmark]: Boogie Preprocessor took 41.31ms. Allocated memory is still 159.4MB. Free memory was 76.2MB in the beginning and 74.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:48:15,829 INFO L158 Benchmark]: RCFGBuilder took 512.40ms. Allocated memory is still 159.4MB. Free memory was 74.0MB in the beginning and 121.6MB in the end (delta: -47.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2024-11-08 23:48:15,829 INFO L158 Benchmark]: TraceAbstraction took 764.44ms. Allocated memory is still 159.4MB. Free memory was 120.7MB in the beginning and 78.1MB in the end (delta: 42.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-08 23:48:15,830 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 159.4MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:48:15,836 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.07ms. Allocated memory is still 159.4MB. Free memory was 92.6MB in the beginning and 78.1MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.40ms. Allocated memory is still 159.4MB. Free memory was 78.1MB in the beginning and 76.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.31ms. Allocated memory is still 159.4MB. Free memory was 76.2MB in the beginning and 74.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 512.40ms. Allocated memory is still 159.4MB. Free memory was 74.0MB in the beginning and 121.6MB in the end (delta: -47.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * TraceAbstraction took 764.44ms. Allocated memory is still 159.4MB. Free memory was 120.7MB in the beginning and 78.1MB in the end (delta: 42.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.02ms. Allocated memory is still 159.4MB. Free memory is still 78.1MB. 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 someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 25.8; [L23] unsigned char var_1_2 = 1; [L24] double var_1_3 = 128.2; [L25] double var_1_4 = 15.4; [L26] double var_1_5 = 5.25; [L27] unsigned char var_1_6 = 0; [L28] float var_1_7 = 8.125; [L29] float var_1_8 = 0.4; [L30] float var_1_9 = 499.4; [L31] float var_1_10 = 63.16; VAL [isInitial=0, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L86] isInitial = 1 [L87] FCALL initially() [L88] COND TRUE 1 [L89] FCALL updateLastVariables() [L90] CALL updateVariables() [L62] var_1_2 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L63] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L64] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L64] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L65] var_1_3 = __VERIFIER_nondet_double() [L66] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L66] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L67] var_1_4 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L68] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L71] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L71] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L72] var_1_8 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_9=2497/5] [L73] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_9=2497/5] [L74] var_1_9 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8] [L75] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8] [L76] var_1_10 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8] [L77] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8] [L90] RET updateVariables() [L91] CALL step() [L35] COND TRUE ! var_1_2 [L36] var_1_1 = (var_1_3 - var_1_4) VAL [isInitial=1, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8] [L40] unsigned char stepLocal_0 = var_1_4 < var_1_3; VAL [isInitial=1, stepLocal_0=0, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8] [L41] COND FALSE !(stepLocal_0 || var_1_2) VAL [isInitial=1, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8] [L48] unsigned char stepLocal_1 = var_1_1 <= (var_1_1 + var_1_3); VAL [isInitial=1, stepLocal_1=1, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8] [L49] COND TRUE var_1_2 || stepLocal_1 [L50] var_1_7 = ((((5.5f) < (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3))))) ? (5.5f) : (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3)))))) VAL [isInitial=1, var_1_2=0, var_1_3=642/5, var_1_5=21/4, var_1_6=0, var_1_7=642/5] [L91] RET step() [L92] CALL, EXPR property() [L82-L83] return (((! var_1_2) ? (var_1_1 == ((double) (var_1_3 - var_1_4))) : (var_1_1 == ((double) ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3)))))) && (((var_1_4 < var_1_3) || var_1_2) ? (var_1_2 ? (var_1_6 ? (var_1_5 == ((double) var_1_3)) : 1) : 1) : 1)) && ((var_1_2 || (var_1_1 <= (var_1_1 + var_1_3))) ? (var_1_7 == ((float) ((((5.5f) < (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3))))) ? (5.5f) : (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3)))))))) : (var_1_6 ? (var_1_7 == ((float) ((var_1_8 - var_1_9) + var_1_10))) : (var_1_2 ? (var_1_7 == ((float) var_1_9)) : 1))) ; VAL [\result=0, isInitial=1, var_1_2=0, var_1_3=642/5, var_1_5=21/4, var_1_6=0, var_1_7=642/5] [L92] RET, EXPR property() [L92] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_2=0, var_1_3=642/5, var_1_5=21/4, var_1_6=0, var_1_7=642/5] [L19] reach_error() VAL [isInitial=1, var_1_2=0, var_1_3=642/5, var_1_5=21/4, var_1_6=0, var_1_7=642/5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 9, 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, 55 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, 55 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 144/144 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 [2024-11-08 23:48:15,869 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-0.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 318f2e3ad64ca294baf1dde289a55f9fb4912d80a16ec862d0adf52a5caea970 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 23:48:18,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:48:18,124 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 23:48:18,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:48:18,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 23:48:18,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:48:18,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 23:48:18,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 23:48:18,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 23:48:18,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 23:48:18,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:48:18,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 23:48:18,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:48:18,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:48:18,162 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 23:48:18,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:48:18,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:48:18,167 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:48:18,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:48:18,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:48:18,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:48:18,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:48:18,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:48:18,169 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:48:18,169 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:48:18,169 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:48:18,169 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:48:18,170 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:48:18,170 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:48:18,170 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:48:18,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:48:18,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 23:48:18,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 23:48:18,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 23:48:18,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:48:18,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:48:18,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:48:18,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:48:18,179 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 23:48:18,179 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:48:18,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 23:48:18,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 23:48:18,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 23:48:18,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 23:48:18,182 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318f2e3ad64ca294baf1dde289a55f9fb4912d80a16ec862d0adf52a5caea970 [2024-11-08 23:48:18,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:48:18,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:48:18,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:48:18,542 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:48:18,543 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:48:18,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i [2024-11-08 23:48:20,112 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:48:20,345 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:48:20,346 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i [2024-11-08 23:48:20,359 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3d457ef4/b49d2168dc624f318255e30167331f97/FLAG4aed937f0 [2024-11-08 23:48:20,376 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3d457ef4/b49d2168dc624f318255e30167331f97 [2024-11-08 23:48:20,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:48:20,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:48:20,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:48:20,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:48:20,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:48:20,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28281c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20, skipping insertion in model container [2024-11-08 23:48:20,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,418 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:48:20,625 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-0.i[914,927] [2024-11-08 23:48:20,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:48:20,690 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:48:20,701 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-0.i[914,927] [2024-11-08 23:48:20,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:48:20,746 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:48:20,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20 WrapperNode [2024-11-08 23:48:20,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:48:20,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:48:20,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:48:20,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:48:20,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,804 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2024-11-08 23:48:20,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:48:20,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:48:20,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:48:20,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:48:20,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,821 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,839 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]. [2024-11-08 23:48:20,839 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,849 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:48:20,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:48:20,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:48:20,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:48:20,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (1/1) ... [2024-11-08 23:48:20,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:48:20,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:48:20,910 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) [2024-11-08 23:48:20,916 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 [2024-11-08 23:48:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:48:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 23:48:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:48:20,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:48:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:48:20,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:48:21,020 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:48:21,023 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:48:24,981 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-08 23:48:24,982 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:48:24,994 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:48:24,994 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:48:24,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:48:24 BoogieIcfgContainer [2024-11-08 23:48:24,994 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:48:24,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 23:48:24,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 23:48:24,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 23:48:24,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:48:20" (1/3) ... [2024-11-08 23:48:24,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272d275f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:48:24, skipping insertion in model container [2024-11-08 23:48:25,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:20" (2/3) ... [2024-11-08 23:48:25,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272d275f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:48:25, skipping insertion in model container [2024-11-08 23:48:25,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:48:24" (3/3) ... [2024-11-08 23:48:25,001 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-0.i [2024-11-08 23:48:25,015 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 23:48:25,015 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 23:48:25,075 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 23:48:25,080 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;@578174be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 23:48:25,080 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 23:48:25,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 23:48:25,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 23:48:25,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:48:25,094 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-08 23:48:25,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:48:25,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:48:25,100 INFO L85 PathProgramCache]: Analyzing trace with hash 505783184, now seen corresponding path program 1 times [2024-11-08 23:48:25,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 23:48:25,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207569577] [2024-11-08 23:48:25,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:48:25,111 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 [2024-11-08 23:48:25,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 23:48:25,114 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) [2024-11-08 23:48:25,115 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 [2024-11-08 23:48:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:25,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 23:48:25,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:48:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-08 23:48:25,571 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 23:48:25,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 23:48:25,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207569577] [2024-11-08 23:48:25,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207569577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:48:25,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:48:25,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 23:48:25,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738433936] [2024-11-08 23:48:25,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:48:25,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 23:48:25,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 23:48:25,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 23:48:25,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:48:25,611 INFO L87 Difference]: Start difference. First operand has 44 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 23:48:25,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:48:25,638 INFO L93 Difference]: Finished difference Result 81 states and 127 transitions. [2024-11-08 23:48:25,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 23:48:25,641 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-08 23:48:25,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:48:25,647 INFO L225 Difference]: With dead ends: 81 [2024-11-08 23:48:25,647 INFO L226 Difference]: Without dead ends: 40 [2024-11-08 23:48:25,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:48:25,653 INFO L432 NwaCegarLoop]: 55 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, 55 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 [2024-11-08 23:48:25,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 23:48:25,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-08 23:48:25,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-08 23:48:25,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 23:48:25,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2024-11-08 23:48:25,686 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 66 [2024-11-08 23:48:25,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:48:25,686 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2024-11-08 23:48:25,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 23:48:25,687 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2024-11-08 23:48:25,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 23:48:25,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:48:25,689 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-08 23:48:25,702 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 [2024-11-08 23:48:25,890 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 [2024-11-08 23:48:25,891 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:48:25,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:48:25,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1993124846, now seen corresponding path program 1 times [2024-11-08 23:48:25,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 23:48:25,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269899285] [2024-11-08 23:48:25,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:48:25,893 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 [2024-11-08 23:48:25,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 23:48:25,895 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) [2024-11-08 23:48:25,896 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 [2024-11-08 23:48:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:26,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 23:48:26,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:49:03,647 WARN L286 SmtUtils]: Spent 13.28s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 23:49:17,527 WARN L286 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 23:49:41,236 WARN L286 SmtUtils]: Spent 10.12s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)