./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 57aa769afed4a061f728787b55a05b2a082848f9dc6ce06d34092eb1dbdd7a2a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 11:43:16,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 11:43:16,995 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 11:43:17,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 11:43:17,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 11:43:17,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 11:43:17,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 11:43:17,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 11:43:17,037 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 11:43:17,038 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 11:43:17,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 11:43:17,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 11:43:17,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 11:43:17,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 11:43:17,040 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 11:43:17,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 11:43:17,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 11:43:17,041 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 11:43:17,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 11:43:17,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 11:43:17,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 11:43:17,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 11:43:17,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 11:43:17,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 11:43:17,049 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 11:43:17,049 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 11:43:17,049 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 11:43:17,050 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 11:43:17,050 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 11:43:17,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 11:43:17,051 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 11:43:17,051 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 11:43:17,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 11:43:17,051 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 11:43:17,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 11:43:17,052 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 11:43:17,052 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 11:43:17,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 11:43:17,053 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 11:43:17,053 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 11:43:17,054 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 11:43:17,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 11:43:17,055 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57aa769afed4a061f728787b55a05b2a082848f9dc6ce06d34092eb1dbdd7a2a [2024-10-11 11:43:17,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 11:43:17,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 11:43:17,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 11:43:17,347 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 11:43:17,347 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 11:43:17,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i [2024-10-11 11:43:18,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 11:43:18,984 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 11:43:18,985 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i [2024-10-11 11:43:18,994 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/96456a4ee/9d608cb65850469a831d04d09fabd5a5/FLAG22ff817a1 [2024-10-11 11:43:19,009 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/96456a4ee/9d608cb65850469a831d04d09fabd5a5 [2024-10-11 11:43:19,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 11:43:19,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 11:43:19,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 11:43:19,032 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 11:43:19,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 11:43:19,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5327953a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19, skipping insertion in model container [2024-10-11 11:43:19,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,069 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 11:43:19,266 WARN L248 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-87.i[915,928] [2024-10-11 11:43:19,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 11:43:19,335 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 11:43:19,347 WARN L248 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-87.i[915,928] [2024-10-11 11:43:19,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 11:43:19,404 INFO L204 MainTranslator]: Completed translation [2024-10-11 11:43:19,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19 WrapperNode [2024-10-11 11:43:19,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 11:43:19,406 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 11:43:19,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 11:43:19,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 11:43:19,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,459 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2024-10-11 11:43:19,463 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 11:43:19,464 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 11:43:19,464 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 11:43:19,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 11:43:19,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,480 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,495 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]. [2024-10-11 11:43:19,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,501 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 11:43:19,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 11:43:19,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 11:43:19,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 11:43:19,519 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (1/1) ... [2024-10-11 11:43:19,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 11:43:19,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 11:43:19,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 11:43:19,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 11:43:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 11:43:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 11:43:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 11:43:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 11:43:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 11:43:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 11:43:19,685 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 11:43:19,687 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 11:43:19,925 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-10-11 11:43:19,926 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 11:43:19,962 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 11:43:19,962 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 11:43:19,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:43:19 BoogieIcfgContainer [2024-10-11 11:43:19,963 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 11:43:19,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 11:43:19,967 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 11:43:19,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 11:43:19,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:43:19" (1/3) ... [2024-10-11 11:43:19,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df5bbfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:43:19, skipping insertion in model container [2024-10-11 11:43:19,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:19" (2/3) ... [2024-10-11 11:43:19,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df5bbfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:43:19, skipping insertion in model container [2024-10-11 11:43:19,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:43:19" (3/3) ... [2024-10-11 11:43:19,974 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-87.i [2024-10-11 11:43:19,990 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 11:43:19,991 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 11:43:20,059 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 11:43:20,065 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;@2169d788, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 11:43:20,065 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 11:43:20,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 35 states have internal predecessors, (49), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 11:43:20,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 11:43:20,076 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:43:20,077 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1] [2024-10-11 11:43:20,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:43:20,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:43:20,082 INFO L85 PathProgramCache]: Analyzing trace with hash 697213815, now seen corresponding path program 1 times [2024-10-11 11:43:20,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:43:20,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360118914] [2024-10-11 11:43:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:43:20,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:43:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 11:43:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 11:43:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 11:43:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 11:43:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 11:43:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 11:43:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 11:43:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 11:43:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 11:43:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 11:43:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 11:43:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 11:43:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 11:43:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 11:43:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:20,426 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 11:43:20,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 11:43:20,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360118914] [2024-10-11 11:43:20,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360118914] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 11:43:20,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 11:43:20,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 11:43:20,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599460669] [2024-10-11 11:43:20,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 11:43:20,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 11:43:20,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 11:43:20,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 11:43:20,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 11:43:20,465 INFO L87 Difference]: Start difference. First operand has 51 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 35 states have internal predecessors, (49), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 11:43:20,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 11:43:20,511 INFO L93 Difference]: Finished difference Result 99 states and 166 transitions. [2024-10-11 11:43:20,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 11:43:20,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2024-10-11 11:43:20,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 11:43:20,520 INFO L225 Difference]: With dead ends: 99 [2024-10-11 11:43:20,520 INFO L226 Difference]: Without dead ends: 49 [2024-10-11 11:43:20,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 11:43:20,526 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 11:43:20,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 11:43:20,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-10-11 11:43:20,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-10-11 11:43:20,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 11:43:20,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2024-10-11 11:43:20,566 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 92 [2024-10-11 11:43:20,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 11:43:20,567 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2024-10-11 11:43:20,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 11:43:20,567 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2024-10-11 11:43:20,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 11:43:20,572 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:43:20,572 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1] [2024-10-11 11:43:20,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 11:43:20,573 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:43:20,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:43:20,591 INFO L85 PathProgramCache]: Analyzing trace with hash -146751621, now seen corresponding path program 1 times [2024-10-11 11:43:20,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:43:20,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327732644] [2024-10-11 11:43:20,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:43:20,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:43:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 11:43:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 11:43:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 11:43:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 11:43:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 11:43:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 11:43:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 11:43:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 11:43:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 11:43:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 11:43:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 11:43:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 11:43:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 11:43:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 11:43:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:30,981 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 11:43:30,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 11:43:30,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327732644] [2024-10-11 11:43:30,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327732644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 11:43:30,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 11:43:30,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 11:43:30,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251741690] [2024-10-11 11:43:30,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 11:43:30,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 11:43:30,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 11:43:30,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 11:43:30,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 11:43:30,989 INFO L87 Difference]: Start difference. First operand 49 states and 72 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:43:31,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 11:43:31,205 INFO L93 Difference]: Finished difference Result 116 states and 169 transitions. [2024-10-11 11:43:31,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 11:43:31,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2024-10-11 11:43:31,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 11:43:31,209 INFO L225 Difference]: With dead ends: 116 [2024-10-11 11:43:31,209 INFO L226 Difference]: Without dead ends: 68 [2024-10-11 11:43:31,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-11 11:43:31,211 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 47 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 11:43:31,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 243 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 11:43:31,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-11 11:43:31,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 59. [2024-10-11 11:43:31,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.372093023255814) internal successors, (59), 43 states have internal predecessors, (59), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 11:43:31,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 87 transitions. [2024-10-11 11:43:31,221 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 87 transitions. Word has length 92 [2024-10-11 11:43:31,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 11:43:31,223 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 87 transitions. [2024-10-11 11:43:31,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:43:31,223 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions. [2024-10-11 11:43:31,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-11 11:43:31,226 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:43:31,226 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1] [2024-10-11 11:43:31,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 11:43:31,227 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:43:31,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:43:31,228 INFO L85 PathProgramCache]: Analyzing trace with hash -383632671, now seen corresponding path program 1 times [2024-10-11 11:43:31,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:43:31,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374458868] [2024-10-11 11:43:31,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:43:31,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:43:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 11:43:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 11:43:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 11:43:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 11:43:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 11:43:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 11:43:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 11:43:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 11:43:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 11:43:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 11:43:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 11:43:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 11:43:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 11:43:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 11:43:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:52,763 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 11:43:52,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 11:43:52,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374458868] [2024-10-11 11:43:52,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374458868] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 11:43:52,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 11:43:52,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 11:43:52,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801336869] [2024-10-11 11:43:52,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 11:43:52,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 11:43:52,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 11:43:52,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 11:43:52,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 11:43:52,771 INFO L87 Difference]: Start difference. First operand 59 states and 87 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:43:53,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 11:43:53,776 INFO L93 Difference]: Finished difference Result 193 states and 277 transitions. [2024-10-11 11:43:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 11:43:53,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2024-10-11 11:43:53,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 11:43:53,785 INFO L225 Difference]: With dead ends: 193 [2024-10-11 11:43:53,785 INFO L226 Difference]: Without dead ends: 135 [2024-10-11 11:43:53,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-10-11 11:43:53,788 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 118 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 11:43:53,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 305 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 11:43:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-10-11 11:43:53,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 64. [2024-10-11 11:43:53,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 48 states have internal predecessors, (67), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 11:43:53,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 95 transitions. [2024-10-11 11:43:53,806 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 95 transitions. Word has length 93 [2024-10-11 11:43:53,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 11:43:53,808 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 95 transitions. [2024-10-11 11:43:53,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:43:53,809 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 95 transitions. [2024-10-11 11:43:53,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-11 11:43:53,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:43:53,811 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1] [2024-10-11 11:43:53,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 11:43:53,813 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:43:53,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:43:53,813 INFO L85 PathProgramCache]: Analyzing trace with hash 317431907, now seen corresponding path program 1 times [2024-10-11 11:43:53,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:43:53,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833584413] [2024-10-11 11:43:53,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:43:53,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:43:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 11:43:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 11:43:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 11:43:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 11:43:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 11:43:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 11:43:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 11:43:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 11:43:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 11:43:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 11:43:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 11:43:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 11:43:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 11:43:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 11:43:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:43:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 11:43:54,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 11:43:54,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833584413] [2024-10-11 11:43:54,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833584413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 11:43:54,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 11:43:54,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 11:43:54,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524732456] [2024-10-11 11:43:54,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 11:43:54,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 11:43:54,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 11:43:54,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 11:43:54,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 11:43:54,190 INFO L87 Difference]: Start difference. First operand 64 states and 95 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:43:54,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 11:43:54,450 INFO L93 Difference]: Finished difference Result 187 states and 269 transitions. [2024-10-11 11:43:54,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 11:43:54,450 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2024-10-11 11:43:54,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 11:43:54,452 INFO L225 Difference]: With dead ends: 187 [2024-10-11 11:43:54,452 INFO L226 Difference]: Without dead ends: 124 [2024-10-11 11:43:54,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 11:43:54,454 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 64 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 11:43:54,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 316 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 11:43:54,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-10-11 11:43:54,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 106. [2024-10-11 11:43:54,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 87 states have (on average 1.4137931034482758) internal successors, (123), 88 states have internal predecessors, (123), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 11:43:54,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 155 transitions. [2024-10-11 11:43:54,478 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 155 transitions. Word has length 93 [2024-10-11 11:43:54,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 11:43:54,480 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 155 transitions. [2024-10-11 11:43:54,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:43:54,481 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 155 transitions. [2024-10-11 11:43:54,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-11 11:43:54,482 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:43:54,483 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1] [2024-10-11 11:43:54,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 11:43:54,486 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:43:54,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:43:54,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1394749921, now seen corresponding path program 1 times [2024-10-11 11:43:54,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:43:54,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305900207] [2024-10-11 11:43:54,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:43:54,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:43:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 11:44:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 11:44:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 11:44:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 11:44:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 11:44:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 11:44:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 11:44:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 11:44:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 11:44:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 11:44:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 11:44:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 11:44:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 11:44:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 11:44:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:03,573 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 11:44:03,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 11:44:03,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305900207] [2024-10-11 11:44:03,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305900207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 11:44:03,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 11:44:03,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 11:44:03,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121668554] [2024-10-11 11:44:03,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 11:44:03,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 11:44:03,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 11:44:03,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 11:44:03,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-11 11:44:03,580 INFO L87 Difference]: Start difference. First operand 106 states and 155 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:44:04,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 11:44:04,008 INFO L93 Difference]: Finished difference Result 304 states and 439 transitions. [2024-10-11 11:44:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 11:44:04,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2024-10-11 11:44:04,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 11:44:04,014 INFO L225 Difference]: With dead ends: 304 [2024-10-11 11:44:04,015 INFO L226 Difference]: Without dead ends: 199 [2024-10-11 11:44:04,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 11:44:04,018 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 94 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 11:44:04,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 301 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 11:44:04,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-10-11 11:44:04,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 169. [2024-10-11 11:44:04,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 132 states have (on average 1.393939393939394) internal successors, (184), 134 states have internal predecessors, (184), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-11 11:44:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 248 transitions. [2024-10-11 11:44:04,057 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 248 transitions. Word has length 93 [2024-10-11 11:44:04,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 11:44:04,058 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 248 transitions. [2024-10-11 11:44:04,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:44:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 248 transitions. [2024-10-11 11:44:04,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-11 11:44:04,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:44:04,060 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1] [2024-10-11 11:44:04,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 11:44:04,060 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:44:04,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:44:04,061 INFO L85 PathProgramCache]: Analyzing trace with hash -693685343, now seen corresponding path program 1 times [2024-10-11 11:44:04,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:44:04,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937503290] [2024-10-11 11:44:04,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:44:04,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:44:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 11:44:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 11:44:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 11:44:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 11:44:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 11:44:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 11:44:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 11:44:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 11:44:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 11:44:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 11:44:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 11:44:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 11:44:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 11:44:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 11:44:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:04,259 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 11:44:04,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 11:44:04,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937503290] [2024-10-11 11:44:04,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937503290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 11:44:04,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 11:44:04,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 11:44:04,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255881039] [2024-10-11 11:44:04,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 11:44:04,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 11:44:04,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 11:44:04,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 11:44:04,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 11:44:04,262 INFO L87 Difference]: Start difference. First operand 169 states and 248 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:44:04,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 11:44:04,367 INFO L93 Difference]: Finished difference Result 322 states and 472 transitions. [2024-10-11 11:44:04,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 11:44:04,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2024-10-11 11:44:04,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 11:44:04,371 INFO L225 Difference]: With dead ends: 322 [2024-10-11 11:44:04,371 INFO L226 Difference]: Without dead ends: 161 [2024-10-11 11:44:04,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 11:44:04,373 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 45 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 11:44:04,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 298 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 11:44:04,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-10-11 11:44:04,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2024-10-11 11:44:04,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 122 states have (on average 1.3688524590163935) internal successors, (167), 124 states have internal predecessors, (167), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-11 11:44:04,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 231 transitions. [2024-10-11 11:44:04,407 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 231 transitions. Word has length 93 [2024-10-11 11:44:04,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 11:44:04,407 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 231 transitions. [2024-10-11 11:44:04,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:44:04,407 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 231 transitions. [2024-10-11 11:44:04,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-11 11:44:04,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:44:04,408 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 11:44:04,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 11:44:04,409 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:44:04,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:44:04,410 INFO L85 PathProgramCache]: Analyzing trace with hash 354462304, now seen corresponding path program 1 times [2024-10-11 11:44:04,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:44:04,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405987733] [2024-10-11 11:44:04,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:44:04,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:44:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 11:44:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 11:44:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 11:44:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 11:44:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 11:44:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 11:44:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 11:44:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 11:44:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 11:44:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 11:44:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 11:44:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 11:44:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 11:44:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 11:44:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:11,406 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 11:44:11,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 11:44:11,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405987733] [2024-10-11 11:44:11,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405987733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 11:44:11,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 11:44:11,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 11:44:11,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216944286] [2024-10-11 11:44:11,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 11:44:11,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 11:44:11,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 11:44:11,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 11:44:11,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 11:44:11,410 INFO L87 Difference]: Start difference. First operand 159 states and 231 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:44:12,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 11:44:12,924 INFO L93 Difference]: Finished difference Result 243 states and 342 transitions. [2024-10-11 11:44:12,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 11:44:12,925 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-10-11 11:44:12,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 11:44:12,928 INFO L225 Difference]: With dead ends: 243 [2024-10-11 11:44:12,928 INFO L226 Difference]: Without dead ends: 241 [2024-10-11 11:44:12,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-10-11 11:44:12,929 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 27 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 11:44:12,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 317 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 11:44:12,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-10-11 11:44:12,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 233. [2024-10-11 11:44:12,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 183 states have (on average 1.3278688524590163) internal successors, (243), 188 states have internal predecessors, (243), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 37 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 11:44:12,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 327 transitions. [2024-10-11 11:44:12,974 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 327 transitions. Word has length 94 [2024-10-11 11:44:12,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 11:44:12,975 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 327 transitions. [2024-10-11 11:44:12,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:44:12,975 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 327 transitions. [2024-10-11 11:44:12,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-11 11:44:12,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:44:12,976 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 11:44:12,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 11:44:12,977 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:44:12,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:44:12,977 INFO L85 PathProgramCache]: Analyzing trace with hash 91929880, now seen corresponding path program 1 times [2024-10-11 11:44:12,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:44:12,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600600367] [2024-10-11 11:44:12,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:44:12,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:44:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 11:44:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 11:44:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 11:44:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 11:44:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 11:44:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 11:44:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 11:44:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 11:44:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 11:44:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 11:44:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 11:44:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 11:44:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 11:44:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 11:44:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:28,414 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 11:44:28,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 11:44:28,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600600367] [2024-10-11 11:44:28,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600600367] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 11:44:28,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 11:44:28,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 11:44:28,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585951438] [2024-10-11 11:44:28,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 11:44:28,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 11:44:28,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 11:44:28,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 11:44:28,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 11:44:28,416 INFO L87 Difference]: Start difference. First operand 233 states and 327 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:44:29,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 11:44:29,349 INFO L93 Difference]: Finished difference Result 419 states and 584 transitions. [2024-10-11 11:44:29,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 11:44:29,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-10-11 11:44:29,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 11:44:29,353 INFO L225 Difference]: With dead ends: 419 [2024-10-11 11:44:29,355 INFO L226 Difference]: Without dead ends: 264 [2024-10-11 11:44:29,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-11 11:44:29,356 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 48 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 11:44:29,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 310 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 11:44:29,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-10-11 11:44:29,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 223. [2024-10-11 11:44:29,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 173 states have (on average 1.3121387283236994) internal successors, (227), 178 states have internal predecessors, (227), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 37 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 11:44:29,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 311 transitions. [2024-10-11 11:44:29,406 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 311 transitions. Word has length 94 [2024-10-11 11:44:29,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 11:44:29,407 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 311 transitions. [2024-10-11 11:44:29,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:44:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 311 transitions. [2024-10-11 11:44:29,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-11 11:44:29,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:44:29,409 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 11:44:29,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 11:44:29,409 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:44:29,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:44:29,409 INFO L85 PathProgramCache]: Analyzing trace with hash 350095318, now seen corresponding path program 1 times [2024-10-11 11:44:29,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:44:29,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251030953] [2024-10-11 11:44:29,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:44:29,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:44:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 11:44:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 11:44:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 11:44:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 11:44:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 11:44:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 11:44:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 11:44:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 11:44:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 11:44:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 11:44:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 11:44:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 11:44:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 11:44:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 11:44:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:37,663 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 11:44:37,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 11:44:37,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251030953] [2024-10-11 11:44:37,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251030953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 11:44:37,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 11:44:37,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 11:44:37,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849706694] [2024-10-11 11:44:37,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 11:44:37,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 11:44:37,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 11:44:37,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 11:44:37,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 11:44:37,666 INFO L87 Difference]: Start difference. First operand 223 states and 311 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:44:38,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 11:44:38,455 INFO L93 Difference]: Finished difference Result 378 states and 523 transitions. [2024-10-11 11:44:38,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 11:44:38,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-10-11 11:44:38,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 11:44:38,457 INFO L225 Difference]: With dead ends: 378 [2024-10-11 11:44:38,457 INFO L226 Difference]: Without dead ends: 233 [2024-10-11 11:44:38,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-11 11:44:38,458 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 45 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 11:44:38,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 323 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 11:44:38,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-10-11 11:44:38,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 223. [2024-10-11 11:44:38,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 173 states have (on average 1.30635838150289) internal successors, (226), 178 states have internal predecessors, (226), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 37 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 11:44:38,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 310 transitions. [2024-10-11 11:44:38,498 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 310 transitions. Word has length 94 [2024-10-11 11:44:38,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 11:44:38,499 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 310 transitions. [2024-10-11 11:44:38,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 11:44:38,499 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 310 transitions. [2024-10-11 11:44:38,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 11:44:38,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:44:38,500 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 11:44:38,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 11:44:38,501 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:44:38,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:44:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1608059649, now seen corresponding path program 1 times [2024-10-11 11:44:38,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:44:38,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580047238] [2024-10-11 11:44:38,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:44:38,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:44:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 11:44:38,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138418454] [2024-10-11 11:44:38,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:44:38,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 11:44:38,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 11:44:38,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 11:44:38,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 11:44:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 11:44:38,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 11:44:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 11:44:38,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 11:44:38,794 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 11:44:38,796 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 11:44:38,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 11:44:39,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 11:44:39,005 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 11:44:39,126 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 11:44:39,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 11:44:39 BoogieIcfgContainer [2024-10-11 11:44:39,129 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 11:44:39,130 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 11:44:39,130 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 11:44:39,130 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 11:44:39,131 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:43:19" (3/4) ... [2024-10-11 11:44:39,134 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 11:44:39,135 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 11:44:39,136 INFO L158 Benchmark]: Toolchain (without parser) took 80105.57ms. Allocated memory was 155.2MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 126.1MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-10-11 11:44:39,136 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 155.2MB. Free memory was 106.1MB in the beginning and 105.9MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 11:44:39,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.89ms. Allocated memory was 155.2MB in the beginning and 211.8MB in the end (delta: 56.6MB). Free memory was 125.9MB in the beginning and 173.1MB in the end (delta: -47.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-11 11:44:39,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.77ms. Allocated memory is still 211.8MB. Free memory was 173.1MB in the beginning and 171.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 11:44:39,137 INFO L158 Benchmark]: Boogie Preprocessor took 48.28ms. Allocated memory is still 211.8MB. Free memory was 171.0MB in the beginning and 168.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 11:44:39,137 INFO L158 Benchmark]: RCFGBuilder took 449.91ms. Allocated memory is still 211.8MB. Free memory was 168.9MB in the beginning and 148.9MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 11:44:39,137 INFO L158 Benchmark]: TraceAbstraction took 79162.49ms. Allocated memory was 211.8MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 148.9MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 794.7MB. Max. memory is 16.1GB. [2024-10-11 11:44:39,137 INFO L158 Benchmark]: Witness Printer took 5.34ms. Allocated memory is still 1.4GB. Free memory is still 1.3GB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 11:44:39,139 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 155.2MB. Free memory was 106.1MB in the beginning and 105.9MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.89ms. Allocated memory was 155.2MB in the beginning and 211.8MB in the end (delta: 56.6MB). Free memory was 125.9MB in the beginning and 173.1MB in the end (delta: -47.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.77ms. Allocated memory is still 211.8MB. Free memory was 173.1MB in the beginning and 171.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.28ms. Allocated memory is still 211.8MB. Free memory was 171.0MB in the beginning and 168.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 449.91ms. Allocated memory is still 211.8MB. Free memory was 168.9MB in the beginning and 148.9MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 79162.49ms. Allocated memory was 211.8MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 148.9MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 794.7MB. Max. memory is 16.1GB. * Witness Printer took 5.34ms. Allocated memory is still 1.4GB. Free memory is still 1.3GB. 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 93. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 1; [L23] unsigned char var_1_2 = 0; [L24] unsigned long int var_1_3 = 3164414017; [L25] unsigned long int var_1_4 = 128; [L26] signed char var_1_5 = -128; [L27] signed char var_1_6 = 10; [L28] signed char var_1_7 = 50; [L29] float var_1_8 = 5.1; [L30] float var_1_9 = 63.75; [L31] signed char var_1_10 = 100; [L32] signed long int var_1_12 = 5; [L33] signed char last_1_var_1_10 = 100; [L97] isInitial = 1 [L98] FCALL initially() [L99] COND TRUE 1 [L100] CALL updateLastVariables() [L90] last_1_var_1_10 = var_1_10 [L100] RET updateLastVariables() [L101] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L69] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L69] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L70] var_1_3 = __VERIFIER_nondet_ulong() [L71] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L71] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L72] CALL assume_abort_if_not(var_1_3 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L72] RET assume_abort_if_not(var_1_3 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L73] var_1_4 = __VERIFIER_nondet_ulong() [L74] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L74] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L75] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L75] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L76] var_1_6 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_6 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L77] RET assume_abort_if_not(var_1_6 >= -126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L78] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L78] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L79] var_1_7 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L80] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L81] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L81] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L82] var_1_9 = __VERIFIER_nondet_float() [L83] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L83] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L84] var_1_12 = __VERIFIER_nondet_long() [L85] CALL assume_abort_if_not(var_1_12 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L85] RET assume_abort_if_not(var_1_12 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L86] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L86] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L87] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L87] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=1, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L101] RET updateVariables() [L102] CALL step() [L37] COND TRUE \read(var_1_2) [L38] var_1_1 = ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L40] signed long int stepLocal_1 = -8; [L41] unsigned long int stepLocal_0 = var_1_1; VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=-2147483649, stepLocal_1=-8, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L42] COND FALSE !(stepLocal_1 < var_1_4) [L49] var_1_5 = -2 VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=-2147483649, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L51] unsigned long int stepLocal_3 = var_1_1; VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=-2147483649, stepLocal_3=-2147483649, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L52] EXPR var_1_4 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=-2147483649, stepLocal_3=-2147483649, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L52] unsigned long int stepLocal_2 = var_1_4 >> var_1_3; [L53] COND TRUE var_1_6 >= stepLocal_2 VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=-2147483649, stepLocal_3=-2147483649, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L54] COND TRUE var_1_6 != stepLocal_3 [L55] var_1_8 = var_1_9 VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=-2147483649, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=2, var_1_9=2] [L58] COND FALSE !((var_1_1 + (var_1_6 / var_1_12)) < var_1_1) VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=-2147483649, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=2, var_1_9=2] [L102] RET step() [L103] CALL, EXPR property() [L93] EXPR ((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=2, var_1_9=2] [L93] EXPR var_1_4 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=2, var_1_9=2] [L93] EXPR ((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=2, var_1_9=2] [L93-L94] return (((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1)) && (((var_1_1 + (var_1_6 / var_1_12)) < var_1_1) ? ((var_1_7 >= last_1_var_1_10) ? (var_1_10 == ((signed char) -32)) : (var_1_10 == ((signed char) var_1_7))) : 1) ; [L103] RET, EXPR property() [L103] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=2, var_1_9=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=125, var_1_1=-2147483649, var_1_2=1, var_1_3=-2147483649, var_1_4=0, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=2, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 79.0s, OverallIterations: 10, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 488 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 488 mSDsluCounter, 2482 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1846 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1532 IncrementalHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 636 mSDtfsCounter, 1532 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 362 GetRequests, 299 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233occurred in iteration=7, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 189 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 72.0s InterpolantComputationTime, 1028 NumberOfCodeBlocks, 1028 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 829 ConstructedInterpolants, 0 QuantifiedInterpolants, 14108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 3276/3276 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 [2024-10-11 11:44:39,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 57aa769afed4a061f728787b55a05b2a082848f9dc6ce06d34092eb1dbdd7a2a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 11:44:41,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 11:44:41,571 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-11 11:44:41,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 11:44:41,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 11:44:41,609 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 11:44:41,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 11:44:41,610 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 11:44:41,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 11:44:41,611 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 11:44:41,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 11:44:41,611 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 11:44:41,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 11:44:41,613 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 11:44:41,613 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 11:44:41,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 11:44:41,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 11:44:41,614 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 11:44:41,614 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 11:44:41,615 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 11:44:41,615 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 11:44:41,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 11:44:41,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 11:44:41,619 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 11:44:41,619 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 11:44:41,619 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 11:44:41,619 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 11:44:41,620 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 11:44:41,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 11:44:41,620 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 11:44:41,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 11:44:41,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 11:44:41,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 11:44:41,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 11:44:41,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 11:44:41,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 11:44:41,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 11:44:41,625 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 11:44:41,633 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 11:44:41,633 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 11:44:41,634 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 11:44:41,635 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 11:44:41,636 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 11:44:41,636 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 11:44:41,637 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 11:44:41,637 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57aa769afed4a061f728787b55a05b2a082848f9dc6ce06d34092eb1dbdd7a2a [2024-10-11 11:44:41,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 11:44:41,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 11:44:41,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 11:44:41,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 11:44:41,993 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 11:44:41,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i