./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bee37cc3aa930a1b9dc8d03049770a16229b9136afc75c48614cf8a9ab0bb811 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 03:47:02,057 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 03:47:02,118 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 03:47:02,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 03:47:02,124 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 03:47:02,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 03:47:02,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 03:47:02,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 03:47:02,151 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 03:47:02,152 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 03:47:02,152 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 03:47:02,154 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 03:47:02,155 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 03:47:02,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 03:47:02,157 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 03:47:02,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 03:47:02,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 03:47:02,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 03:47:02,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 03:47:02,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 03:47:02,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 03:47:02,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 03:47:02,162 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 03:47:02,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 03:47:02,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 03:47:02,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 03:47:02,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 03:47:02,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 03:47:02,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 03:47:02,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:47:02,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 03:47:02,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 03:47:02,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 03:47:02,164 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 03:47:02,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 03:47:02,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 03:47:02,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 03:47:02,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 03:47:02,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 03:47:02,165 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bee37cc3aa930a1b9dc8d03049770a16229b9136afc75c48614cf8a9ab0bb811 [2024-10-24 03:47:02,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 03:47:02,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 03:47:02,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 03:47:02,396 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 03:47:02,396 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 03:47:02,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c [2024-10-24 03:47:03,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 03:47:03,909 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 03:47:03,910 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c [2024-10-24 03:47:03,930 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d51733d4e/97076dfe77cd402ca60375de45332973/FLAGb159e17e0 [2024-10-24 03:47:03,945 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d51733d4e/97076dfe77cd402ca60375de45332973 [2024-10-24 03:47:03,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 03:47:03,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 03:47:03,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 03:47:03,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 03:47:03,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 03:47:03,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:47:03" (1/1) ... [2024-10-24 03:47:03,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a8cbb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:03, skipping insertion in model container [2024-10-24 03:47:03,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:47:03" (1/1) ... [2024-10-24 03:47:03,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 03:47:04,133 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/hardware-verification-bv/btor2c-lazyMod.cal55.c[1245,1258] [2024-10-24 03:47:04,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:47:04,213 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 03:47:04,226 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/hardware-verification-bv/btor2c-lazyMod.cal55.c[1245,1258] [2024-10-24 03:47:04,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:47:04,289 INFO L204 MainTranslator]: Completed translation [2024-10-24 03:47:04,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04 WrapperNode [2024-10-24 03:47:04,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 03:47:04,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 03:47:04,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 03:47:04,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 03:47:04,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (1/1) ... [2024-10-24 03:47:04,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (1/1) ... [2024-10-24 03:47:04,361 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 348 [2024-10-24 03:47:04,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 03:47:04,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 03:47:04,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 03:47:04,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 03:47:04,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (1/1) ... [2024-10-24 03:47:04,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (1/1) ... [2024-10-24 03:47:04,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (1/1) ... [2024-10-24 03:47:04,412 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-10-24 03:47:04,412 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (1/1) ... [2024-10-24 03:47:04,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (1/1) ... [2024-10-24 03:47:04,426 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (1/1) ... [2024-10-24 03:47:04,433 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (1/1) ... [2024-10-24 03:47:04,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (1/1) ... [2024-10-24 03:47:04,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (1/1) ... [2024-10-24 03:47:04,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 03:47:04,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 03:47:04,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 03:47:04,454 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 03:47:04,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (1/1) ... [2024-10-24 03:47:04,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:47:04,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:47:04,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 03:47:04,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 03:47:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 03:47:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 03:47:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 03:47:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 03:47:04,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 03:47:04,599 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 03:47:04,602 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 03:47:05,100 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-10-24 03:47:05,100 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 03:47:05,120 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 03:47:05,121 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 03:47:05,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:47:05 BoogieIcfgContainer [2024-10-24 03:47:05,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 03:47:05,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 03:47:05,124 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 03:47:05,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 03:47:05,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:47:03" (1/3) ... [2024-10-24 03:47:05,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb40eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:47:05, skipping insertion in model container [2024-10-24 03:47:05,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:04" (2/3) ... [2024-10-24 03:47:05,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb40eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:47:05, skipping insertion in model container [2024-10-24 03:47:05,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:47:05" (3/3) ... [2024-10-24 03:47:05,129 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal55.c [2024-10-24 03:47:05,142 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 03:47:05,142 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 03:47:05,192 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 03:47:05,197 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;@4f2d4d22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 03:47:05,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 03:47:05,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 78 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:05,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-24 03:47:05,207 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:05,207 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:05,208 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:05,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:05,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1688987424, now seen corresponding path program 1 times [2024-10-24 03:47:05,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:05,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44791032] [2024-10-24 03:47:05,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:05,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:05,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:05,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44791032] [2024-10-24 03:47:05,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44791032] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:05,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:05,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 03:47:05,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592869769] [2024-10-24 03:47:05,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:05,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 03:47:05,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:05,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 03:47:05,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 03:47:05,813 INFO L87 Difference]: Start difference. First operand has 79 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 78 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:05,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:05,848 INFO L93 Difference]: Finished difference Result 140 states and 207 transitions. [2024-10-24 03:47:05,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 03:47:05,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-10-24 03:47:05,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:05,855 INFO L225 Difference]: With dead ends: 140 [2024-10-24 03:47:05,857 INFO L226 Difference]: Without dead ends: 78 [2024-10-24 03:47:05,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 03:47:05,862 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 2 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:05,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 215 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:47:05,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-24 03:47:05,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-10-24 03:47:05,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4675324675324675) internal successors, (113), 77 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:05,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2024-10-24 03:47:05,892 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 113 transitions. Word has length 34 [2024-10-24 03:47:05,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:05,892 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 113 transitions. [2024-10-24 03:47:05,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:05,893 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 113 transitions. [2024-10-24 03:47:05,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-24 03:47:05,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:05,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:05,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 03:47:05,895 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:05,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:05,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1976488645, now seen corresponding path program 1 times [2024-10-24 03:47:05,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:05,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892385153] [2024-10-24 03:47:05,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:05,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:06,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:06,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892385153] [2024-10-24 03:47:06,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892385153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:06,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:06,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:47:06,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398284340] [2024-10-24 03:47:06,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:06,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:47:06,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:06,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:47:06,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:47:06,080 INFO L87 Difference]: Start difference. First operand 78 states and 113 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:06,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:06,110 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2024-10-24 03:47:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:47:06,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-10-24 03:47:06,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:06,112 INFO L225 Difference]: With dead ends: 82 [2024-10-24 03:47:06,112 INFO L226 Difference]: Without dead ends: 80 [2024-10-24 03:47:06,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:47:06,113 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:06,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 325 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:47:06,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-24 03:47:06,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-10-24 03:47:06,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.4556962025316456) internal successors, (115), 79 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:06,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2024-10-24 03:47:06,124 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 35 [2024-10-24 03:47:06,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:06,125 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2024-10-24 03:47:06,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:06,125 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2024-10-24 03:47:06,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-24 03:47:06,127 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:06,127 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:06,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 03:47:06,127 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:06,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:06,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1143301199, now seen corresponding path program 1 times [2024-10-24 03:47:06,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:06,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430986258] [2024-10-24 03:47:06,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:06,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:06,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:06,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:06,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430986258] [2024-10-24 03:47:06,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430986258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:06,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:06,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:47:06,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069059987] [2024-10-24 03:47:06,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:06,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:47:06,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:06,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:47:06,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:47:06,273 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:06,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:06,297 INFO L93 Difference]: Finished difference Result 145 states and 208 transitions. [2024-10-24 03:47:06,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:47:06,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-10-24 03:47:06,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:06,301 INFO L225 Difference]: With dead ends: 145 [2024-10-24 03:47:06,301 INFO L226 Difference]: Without dead ends: 82 [2024-10-24 03:47:06,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:47:06,302 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:06,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 322 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:47:06,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-10-24 03:47:06,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-10-24 03:47:06,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.4444444444444444) internal successors, (117), 81 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:06,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2024-10-24 03:47:06,313 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 36 [2024-10-24 03:47:06,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:06,314 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2024-10-24 03:47:06,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:06,314 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2024-10-24 03:47:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-24 03:47:06,315 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:06,315 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:06,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 03:47:06,315 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:06,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:06,316 INFO L85 PathProgramCache]: Analyzing trace with hash -15366946, now seen corresponding path program 1 times [2024-10-24 03:47:06,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:06,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126050073] [2024-10-24 03:47:06,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:06,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:06,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:06,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:06,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126050073] [2024-10-24 03:47:06,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126050073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:06,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:06,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:47:06,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650462614] [2024-10-24 03:47:06,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:06,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:47:06,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:06,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:47:06,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:47:06,667 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:06,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:06,790 INFO L93 Difference]: Finished difference Result 155 states and 220 transitions. [2024-10-24 03:47:06,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:47:06,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-10-24 03:47:06,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:06,793 INFO L225 Difference]: With dead ends: 155 [2024-10-24 03:47:06,793 INFO L226 Difference]: Without dead ends: 90 [2024-10-24 03:47:06,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:47:06,794 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 110 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:06,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 470 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:47:06,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-24 03:47:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2024-10-24 03:47:06,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 87 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:06,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 124 transitions. [2024-10-24 03:47:06,805 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 124 transitions. Word has length 37 [2024-10-24 03:47:06,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:06,805 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 124 transitions. [2024-10-24 03:47:06,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:06,805 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2024-10-24 03:47:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-24 03:47:06,806 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:06,806 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:06,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 03:47:06,807 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:06,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:06,807 INFO L85 PathProgramCache]: Analyzing trace with hash -457753034, now seen corresponding path program 1 times [2024-10-24 03:47:06,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:06,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172165794] [2024-10-24 03:47:06,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:06,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:07,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:07,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172165794] [2024-10-24 03:47:07,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172165794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:07,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:07,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:47:07,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399555249] [2024-10-24 03:47:07,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:07,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:47:07,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:07,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:47:07,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:47:07,044 INFO L87 Difference]: Start difference. First operand 88 states and 124 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:07,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:07,079 INFO L93 Difference]: Finished difference Result 159 states and 223 transitions. [2024-10-24 03:47:07,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:47:07,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-10-24 03:47:07,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:07,080 INFO L225 Difference]: With dead ends: 159 [2024-10-24 03:47:07,083 INFO L226 Difference]: Without dead ends: 88 [2024-10-24 03:47:07,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:47:07,084 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 101 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:07,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 318 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:47:07,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-24 03:47:07,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-10-24 03:47:07,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.4137931034482758) internal successors, (123), 87 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:07,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 123 transitions. [2024-10-24 03:47:07,088 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 123 transitions. Word has length 38 [2024-10-24 03:47:07,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:07,088 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 123 transitions. [2024-10-24 03:47:07,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:07,089 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 123 transitions. [2024-10-24 03:47:07,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-24 03:47:07,093 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:07,093 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:07,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 03:47:07,093 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:07,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:07,093 INFO L85 PathProgramCache]: Analyzing trace with hash -750556686, now seen corresponding path program 1 times [2024-10-24 03:47:07,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:07,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055166628] [2024-10-24 03:47:07,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:07,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:07,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:07,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055166628] [2024-10-24 03:47:07,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055166628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:07,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:07,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:47:07,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076464887] [2024-10-24 03:47:07,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:07,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:47:07,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:07,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:47:07,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:47:07,368 INFO L87 Difference]: Start difference. First operand 88 states and 123 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:07,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:07,421 INFO L93 Difference]: Finished difference Result 163 states and 227 transitions. [2024-10-24 03:47:07,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:47:07,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-10-24 03:47:07,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:07,422 INFO L225 Difference]: With dead ends: 163 [2024-10-24 03:47:07,423 INFO L226 Difference]: Without dead ends: 92 [2024-10-24 03:47:07,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:47:07,424 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 100 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:07,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 380 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:47:07,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-24 03:47:07,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2024-10-24 03:47:07,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.4137931034482758) internal successors, (123), 87 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:07,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 123 transitions. [2024-10-24 03:47:07,428 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 123 transitions. Word has length 38 [2024-10-24 03:47:07,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:07,428 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 123 transitions. [2024-10-24 03:47:07,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:07,428 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 123 transitions. [2024-10-24 03:47:07,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-24 03:47:07,429 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:07,429 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:07,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 03:47:07,429 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:07,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:07,430 INFO L85 PathProgramCache]: Analyzing trace with hash 686094779, now seen corresponding path program 1 times [2024-10-24 03:47:07,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:07,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205932114] [2024-10-24 03:47:07,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:07,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:07,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:07,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:07,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205932114] [2024-10-24 03:47:07,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205932114] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:07,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:07,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:47:07,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900592711] [2024-10-24 03:47:07,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:07,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:47:07,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:07,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:47:07,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:47:07,639 INFO L87 Difference]: Start difference. First operand 88 states and 123 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:07,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:07,660 INFO L93 Difference]: Finished difference Result 159 states and 221 transitions. [2024-10-24 03:47:07,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:47:07,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-10-24 03:47:07,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:07,661 INFO L225 Difference]: With dead ends: 159 [2024-10-24 03:47:07,661 INFO L226 Difference]: Without dead ends: 88 [2024-10-24 03:47:07,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:47:07,662 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 10 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:07,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 301 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:47:07,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-24 03:47:07,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-10-24 03:47:07,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.4022988505747127) internal successors, (122), 87 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:07,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 122 transitions. [2024-10-24 03:47:07,665 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 122 transitions. Word has length 39 [2024-10-24 03:47:07,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:07,666 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 122 transitions. [2024-10-24 03:47:07,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:07,666 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 122 transitions. [2024-10-24 03:47:07,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-24 03:47:07,670 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:07,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:07,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 03:47:07,670 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:07,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:07,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1377277625, now seen corresponding path program 1 times [2024-10-24 03:47:07,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:07,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191795660] [2024-10-24 03:47:07,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:07,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:07,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:07,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:07,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191795660] [2024-10-24 03:47:07,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191795660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:07,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:07,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:47:07,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091999565] [2024-10-24 03:47:07,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:07,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:47:07,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:07,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:47:07,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:47:07,888 INFO L87 Difference]: Start difference. First operand 88 states and 122 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:07,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:07,951 INFO L93 Difference]: Finished difference Result 218 states and 298 transitions. [2024-10-24 03:47:07,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:47:07,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-10-24 03:47:07,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:07,952 INFO L225 Difference]: With dead ends: 218 [2024-10-24 03:47:07,954 INFO L226 Difference]: Without dead ends: 147 [2024-10-24 03:47:07,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:47:07,955 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 255 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:07,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 408 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:47:07,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-10-24 03:47:07,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 128. [2024-10-24 03:47:07,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.3858267716535433) internal successors, (176), 127 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:07,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 176 transitions. [2024-10-24 03:47:07,963 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 176 transitions. Word has length 40 [2024-10-24 03:47:07,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:07,963 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 176 transitions. [2024-10-24 03:47:07,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:07,964 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 176 transitions. [2024-10-24 03:47:07,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-24 03:47:07,964 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:07,964 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:07,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 03:47:07,965 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:07,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:07,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1162953581, now seen corresponding path program 1 times [2024-10-24 03:47:07,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:07,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112113003] [2024-10-24 03:47:07,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:07,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:08,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:08,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:08,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112113003] [2024-10-24 03:47:08,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112113003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:08,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:08,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:47:08,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473029044] [2024-10-24 03:47:08,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:08,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:47:08,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:08,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:47:08,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:47:08,142 INFO L87 Difference]: Start difference. First operand 128 states and 176 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:08,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:08,211 INFO L93 Difference]: Finished difference Result 225 states and 309 transitions. [2024-10-24 03:47:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:47:08,214 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-10-24 03:47:08,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:08,215 INFO L225 Difference]: With dead ends: 225 [2024-10-24 03:47:08,215 INFO L226 Difference]: Without dead ends: 152 [2024-10-24 03:47:08,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:47:08,216 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 17 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:08,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 554 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:47:08,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-24 03:47:08,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 146. [2024-10-24 03:47:08,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.3793103448275863) internal successors, (200), 145 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:08,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 200 transitions. [2024-10-24 03:47:08,229 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 200 transitions. Word has length 41 [2024-10-24 03:47:08,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:08,229 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 200 transitions. [2024-10-24 03:47:08,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:08,229 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 200 transitions. [2024-10-24 03:47:08,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-24 03:47:08,230 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:08,230 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:08,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 03:47:08,230 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:08,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:08,230 INFO L85 PathProgramCache]: Analyzing trace with hash -562468972, now seen corresponding path program 1 times [2024-10-24 03:47:08,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:08,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702449867] [2024-10-24 03:47:08,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:08,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:08,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:08,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:08,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702449867] [2024-10-24 03:47:08,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702449867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:08,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:08,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:47:08,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361894491] [2024-10-24 03:47:08,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:08,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:47:08,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:08,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:47:08,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:47:08,481 INFO L87 Difference]: Start difference. First operand 146 states and 200 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:08,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:08,558 INFO L93 Difference]: Finished difference Result 260 states and 355 transitions. [2024-10-24 03:47:08,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:47:08,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-10-24 03:47:08,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:08,559 INFO L225 Difference]: With dead ends: 260 [2024-10-24 03:47:08,559 INFO L226 Difference]: Without dead ends: 152 [2024-10-24 03:47:08,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:47:08,560 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 97 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:08,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 262 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:47:08,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-24 03:47:08,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 146. [2024-10-24 03:47:08,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.3793103448275863) internal successors, (200), 145 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:08,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 200 transitions. [2024-10-24 03:47:08,564 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 200 transitions. Word has length 41 [2024-10-24 03:47:08,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:08,565 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 200 transitions. [2024-10-24 03:47:08,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:08,565 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 200 transitions. [2024-10-24 03:47:08,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-24 03:47:08,565 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:08,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:08,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 03:47:08,566 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:08,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:08,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1488951264, now seen corresponding path program 1 times [2024-10-24 03:47:08,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:08,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992103702] [2024-10-24 03:47:08,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:08,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:08,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:08,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:08,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992103702] [2024-10-24 03:47:08,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992103702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:08,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:08,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:47:08,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541925760] [2024-10-24 03:47:08,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:08,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:47:08,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:08,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:47:08,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:47:08,740 INFO L87 Difference]: Start difference. First operand 146 states and 200 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:08,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:08,833 INFO L93 Difference]: Finished difference Result 247 states and 336 transitions. [2024-10-24 03:47:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 03:47:08,834 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-10-24 03:47:08,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:08,834 INFO L225 Difference]: With dead ends: 247 [2024-10-24 03:47:08,834 INFO L226 Difference]: Without dead ends: 167 [2024-10-24 03:47:08,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-10-24 03:47:08,835 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 257 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:08,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 600 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:47:08,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-10-24 03:47:08,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 149. [2024-10-24 03:47:08,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.3783783783783783) internal successors, (204), 148 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:08,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 204 transitions. [2024-10-24 03:47:08,839 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 204 transitions. Word has length 42 [2024-10-24 03:47:08,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:08,839 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 204 transitions. [2024-10-24 03:47:08,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:08,839 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 204 transitions. [2024-10-24 03:47:08,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-24 03:47:08,840 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:08,840 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:08,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 03:47:08,840 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:08,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:08,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1406497553, now seen corresponding path program 1 times [2024-10-24 03:47:08,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:08,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306527506] [2024-10-24 03:47:08,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:08,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:09,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:09,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306527506] [2024-10-24 03:47:09,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306527506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:09,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:09,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:47:09,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768584403] [2024-10-24 03:47:09,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:09,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:47:09,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:09,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:47:09,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:47:09,113 INFO L87 Difference]: Start difference. First operand 149 states and 204 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:09,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:09,218 INFO L93 Difference]: Finished difference Result 272 states and 365 transitions. [2024-10-24 03:47:09,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 03:47:09,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-10-24 03:47:09,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:09,220 INFO L225 Difference]: With dead ends: 272 [2024-10-24 03:47:09,220 INFO L226 Difference]: Without dead ends: 187 [2024-10-24 03:47:09,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-24 03:47:09,221 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 125 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:09,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 552 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:47:09,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-24 03:47:09,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183. [2024-10-24 03:47:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 1.3406593406593406) internal successors, (244), 182 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:09,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 244 transitions. [2024-10-24 03:47:09,228 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 244 transitions. Word has length 43 [2024-10-24 03:47:09,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:09,228 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 244 transitions. [2024-10-24 03:47:09,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:09,229 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 244 transitions. [2024-10-24 03:47:09,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-24 03:47:09,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:09,229 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:09,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 03:47:09,229 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:09,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:09,230 INFO L85 PathProgramCache]: Analyzing trace with hash 124219381, now seen corresponding path program 1 times [2024-10-24 03:47:09,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:09,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329232062] [2024-10-24 03:47:09,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:09,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:09,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:09,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329232062] [2024-10-24 03:47:09,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329232062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:09,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:09,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:47:09,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71488483] [2024-10-24 03:47:09,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:09,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:47:09,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:09,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:47:09,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:47:09,639 INFO L87 Difference]: Start difference. First operand 183 states and 244 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:09,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:09,799 INFO L93 Difference]: Finished difference Result 298 states and 395 transitions. [2024-10-24 03:47:09,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 03:47:09,803 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-10-24 03:47:09,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:09,804 INFO L225 Difference]: With dead ends: 298 [2024-10-24 03:47:09,804 INFO L226 Difference]: Without dead ends: 201 [2024-10-24 03:47:09,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-10-24 03:47:09,805 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 252 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:09,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 582 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:47:09,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-24 03:47:09,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 187. [2024-10-24 03:47:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 186 states have (on average 1.3387096774193548) internal successors, (249), 186 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:09,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 249 transitions. [2024-10-24 03:47:09,808 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 249 transitions. Word has length 43 [2024-10-24 03:47:09,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:09,808 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 249 transitions. [2024-10-24 03:47:09,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:09,809 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 249 transitions. [2024-10-24 03:47:09,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-24 03:47:09,809 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:09,809 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:09,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 03:47:09,809 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:09,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:09,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1120378811, now seen corresponding path program 1 times [2024-10-24 03:47:09,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:09,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813864868] [2024-10-24 03:47:09,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:09,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:10,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:10,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:10,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813864868] [2024-10-24 03:47:10,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813864868] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:10,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:10,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:47:10,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906390283] [2024-10-24 03:47:10,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:10,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:47:10,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:10,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:47:10,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:47:10,031 INFO L87 Difference]: Start difference. First operand 187 states and 249 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:10,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:10,058 INFO L93 Difference]: Finished difference Result 316 states and 420 transitions. [2024-10-24 03:47:10,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:47:10,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-10-24 03:47:10,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:10,059 INFO L225 Difference]: With dead ends: 316 [2024-10-24 03:47:10,059 INFO L226 Difference]: Without dead ends: 205 [2024-10-24 03:47:10,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:47:10,060 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 91 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:10,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 315 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:47:10,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-10-24 03:47:10,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-10-24 03:47:10,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.3088235294117647) internal successors, (267), 204 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:10,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 267 transitions. [2024-10-24 03:47:10,065 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 267 transitions. Word has length 44 [2024-10-24 03:47:10,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:10,065 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 267 transitions. [2024-10-24 03:47:10,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:10,066 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 267 transitions. [2024-10-24 03:47:10,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-24 03:47:10,066 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:10,066 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:10,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 03:47:10,067 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:10,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:10,067 INFO L85 PathProgramCache]: Analyzing trace with hash -152121660, now seen corresponding path program 1 times [2024-10-24 03:47:10,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:10,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091888991] [2024-10-24 03:47:10,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:10,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:10,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:10,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:10,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091888991] [2024-10-24 03:47:10,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091888991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:10,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:10,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:47:10,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741520268] [2024-10-24 03:47:10,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:10,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:47:10,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:10,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:47:10,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:47:10,461 INFO L87 Difference]: Start difference. First operand 205 states and 267 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:10,563 INFO L93 Difference]: Finished difference Result 329 states and 427 transitions. [2024-10-24 03:47:10,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:47:10,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-10-24 03:47:10,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:10,564 INFO L225 Difference]: With dead ends: 329 [2024-10-24 03:47:10,564 INFO L226 Difference]: Without dead ends: 187 [2024-10-24 03:47:10,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:47:10,565 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 95 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:10,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 368 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:47:10,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-24 03:47:10,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 179. [2024-10-24 03:47:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.297752808988764) internal successors, (231), 178 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:10,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 231 transitions. [2024-10-24 03:47:10,569 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 231 transitions. Word has length 44 [2024-10-24 03:47:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:10,569 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 231 transitions. [2024-10-24 03:47:10,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:10,570 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 231 transitions. [2024-10-24 03:47:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-24 03:47:10,570 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:10,570 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:10,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 03:47:10,571 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:10,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:10,571 INFO L85 PathProgramCache]: Analyzing trace with hash 67737800, now seen corresponding path program 1 times [2024-10-24 03:47:10,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:10,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018350646] [2024-10-24 03:47:10,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:10,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:10,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:47:10,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018350646] [2024-10-24 03:47:10,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018350646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:10,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:10,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:47:10,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277836409] [2024-10-24 03:47:10,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:10,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:47:10,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:47:10,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:47:10,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:47:10,746 INFO L87 Difference]: Start difference. First operand 179 states and 231 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:10,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:10,814 INFO L93 Difference]: Finished difference Result 298 states and 385 transitions. [2024-10-24 03:47:10,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:47:10,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2024-10-24 03:47:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:10,815 INFO L225 Difference]: With dead ends: 298 [2024-10-24 03:47:10,815 INFO L226 Difference]: Without dead ends: 191 [2024-10-24 03:47:10,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:47:10,815 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 86 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:10,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 256 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:47:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-24 03:47:10,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 179. [2024-10-24 03:47:10,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.297752808988764) internal successors, (231), 178 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:10,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 231 transitions. [2024-10-24 03:47:10,819 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 231 transitions. Word has length 45 [2024-10-24 03:47:10,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:10,819 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 231 transitions. [2024-10-24 03:47:10,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:10,819 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 231 transitions. [2024-10-24 03:47:10,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-24 03:47:10,820 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:10,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:10,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 03:47:10,820 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:10,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:10,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1175189839, now seen corresponding path program 1 times [2024-10-24 03:47:10,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:47:10,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918862908] [2024-10-24 03:47:10,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:10,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:47:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 03:47:10,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 03:47:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 03:47:10,893 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 03:47:10,893 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 03:47:10,894 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 03:47:10,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 03:47:10,897 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:47:10,924 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 03:47:10,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:47:10 BoogieIcfgContainer [2024-10-24 03:47:10,926 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 03:47:10,927 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 03:47:10,927 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 03:47:10,927 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 03:47:10,927 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:47:05" (3/4) ... [2024-10-24 03:47:10,929 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 03:47:10,929 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 03:47:10,930 INFO L158 Benchmark]: Toolchain (without parser) took 6981.76ms. Allocated memory was 127.9MB in the beginning and 371.2MB in the end (delta: 243.3MB). Free memory was 97.6MB in the beginning and 147.2MB in the end (delta: -49.6MB). Peak memory consumption was 193.5MB. Max. memory is 16.1GB. [2024-10-24 03:47:10,930 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 03:47:10,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.72ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 97.3MB in the beginning and 133.1MB in the end (delta: -35.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 03:47:10,930 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.74ms. Allocated memory is still 176.2MB. Free memory was 133.1MB in the beginning and 125.3MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-24 03:47:10,931 INFO L158 Benchmark]: Boogie Preprocessor took 89.66ms. Allocated memory is still 176.2MB. Free memory was 125.3MB in the beginning and 119.7MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-24 03:47:10,931 INFO L158 Benchmark]: RCFGBuilder took 668.17ms. Allocated memory is still 176.2MB. Free memory was 119.7MB in the beginning and 125.0MB in the end (delta: -5.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-10-24 03:47:10,931 INFO L158 Benchmark]: TraceAbstraction took 5802.61ms. Allocated memory was 176.2MB in the beginning and 371.2MB in the end (delta: 195.0MB). Free memory was 125.0MB in the beginning and 147.2MB in the end (delta: -22.2MB). Peak memory consumption was 175.9MB. Max. memory is 16.1GB. [2024-10-24 03:47:10,931 INFO L158 Benchmark]: Witness Printer took 2.97ms. Allocated memory is still 371.2MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 03:47:10,932 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.72ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 97.3MB in the beginning and 133.1MB in the end (delta: -35.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.74ms. Allocated memory is still 176.2MB. Free memory was 133.1MB in the beginning and 125.3MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.66ms. Allocated memory is still 176.2MB. Free memory was 125.3MB in the beginning and 119.7MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 668.17ms. Allocated memory is still 176.2MB. Free memory was 119.7MB in the beginning and 125.0MB in the end (delta: -5.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5802.61ms. Allocated memory was 176.2MB in the beginning and 371.2MB in the end (delta: 195.0MB). Free memory was 125.0MB in the beginning and 147.2MB in the end (delta: -22.2MB). Peak memory consumption was 175.9MB. Max. memory is 16.1GB. * Witness Printer took 2.97ms. Allocated memory is still 371.2MB. Free memory is still 147.2MB. 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: 21]: 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 bitwiseOr at line 117, overapproximation of bitwiseAnd at line 122. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); [L32] const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 2); [L33] const SORT_26 msb_SORT_26 = (SORT_26)1 << (2 - 1); [L35] const SORT_1 var_11 = 0; [L36] const SORT_5 var_15 = 0; [L37] const SORT_5 var_21 = 5; [L38] const SORT_5 var_23 = 4; [L39] const SORT_1 var_39 = 1; [L41] SORT_1 input_2; [L42] SORT_1 input_3; [L43] SORT_1 input_4; [L44] SORT_5 input_6; [L45] SORT_5 input_7; [L46] SORT_1 input_8; [L47] SORT_5 input_9; [L48] SORT_5 input_10; [L50] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L50] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L51] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L51] SORT_5 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L52] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L52] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L53] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L53] SORT_5 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L55] SORT_1 init_13_arg_1 = var_11; [L56] state_12 = init_13_arg_1 [L57] SORT_5 init_17_arg_1 = var_15; [L58] state_16 = init_17_arg_1 [L59] SORT_1 init_19_arg_1 = var_11; [L60] state_18 = init_19_arg_1 [L61] SORT_5 init_30_arg_1 = var_15; [L62] state_29 = init_30_arg_1 VAL [mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L65] input_2 = __VERIFIER_nondet_uchar() [L66] EXPR input_2 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L66] input_2 = input_2 & mask_SORT_1 [L67] input_3 = __VERIFIER_nondet_uchar() [L68] EXPR input_3 & mask_SORT_1 VAL [input_2=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L68] input_3 = input_3 & mask_SORT_1 [L69] input_4 = __VERIFIER_nondet_uchar() [L70] input_6 = __VERIFIER_nondet_uchar() [L71] input_7 = __VERIFIER_nondet_uchar() [L72] input_8 = __VERIFIER_nondet_uchar() [L73] input_9 = __VERIFIER_nondet_uchar() [L74] input_10 = __VERIFIER_nondet_uchar() [L77] SORT_1 var_14_arg_0 = state_12; [L78] SORT_1 var_14 = ~var_14_arg_0; [L79] SORT_1 var_20_arg_0 = state_18; [L80] SORT_5 var_20_arg_1 = state_16; [L81] SORT_5 var_20_arg_2 = input_7; [L82] SORT_5 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; VAL [input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, state_18=0, state_29=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=5, var_23=4, var_39=1] [L83] EXPR var_20 & mask_SORT_5 VAL [input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, state_18=0, state_29=0, var_11=0, var_14=-1, var_15=0, var_21=5, var_23=4, var_39=1] [L83] var_20 = var_20 & mask_SORT_5 [L84] SORT_5 var_24_arg_0 = var_20; [L85] SORT_5 var_24_arg_1 = var_23; [L86] SORT_1 var_24 = var_24_arg_0 == var_24_arg_1; [L87] SORT_1 var_25_arg_0 = var_24; [L88] SORT_1 var_25 = ~var_25_arg_0; [L89] SORT_5 var_22_arg_0 = var_20; [L90] SORT_5 var_22_arg_1 = var_21; [L91] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L92] SORT_1 var_27_arg_0 = var_25; [L93] SORT_1 var_27_arg_1 = var_22; VAL [input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, state_18=0, state_29=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=5, var_23=4, var_25=-1, var_27_arg_0=-1, var_27_arg_1=0, var_39=1] [L94] EXPR ((SORT_26)var_27_arg_0 << 1) | var_27_arg_1 VAL [input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, state_18=0, state_29=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=5, var_23=4, var_25=-1, var_39=1] [L94] SORT_26 var_27 = ((SORT_26)var_27_arg_0 << 1) | var_27_arg_1; [L95] EXPR var_27 & mask_SORT_26 VAL [input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, state_18=0, state_29=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=5, var_23=4, var_25=-1, var_39=1] [L95] var_27 = var_27 & mask_SORT_26 [L96] SORT_26 var_28_arg_0 = var_27; [L97] SORT_1 var_28 = var_28_arg_0 == mask_SORT_26; [L98] SORT_1 var_31_arg_0 = state_18; [L99] SORT_5 var_31_arg_1 = state_29; [L100] SORT_5 var_31_arg_2 = input_7; [L101] SORT_5 var_31 = var_31_arg_0 ? var_31_arg_1 : var_31_arg_2; VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=5, var_23=4, var_25=-1, var_28=1, var_31=0, var_39=1] [L102] EXPR var_31 & mask_SORT_5 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=5, var_23=4, var_25=-1, var_28=1, var_39=1] [L102] var_31 = var_31 & mask_SORT_5 [L103] SORT_5 var_32_arg_0 = var_31; [L104] SORT_5 var_32_arg_1 = var_21; [L105] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L106] SORT_1 var_33_arg_0 = var_25; [L107] SORT_1 var_33_arg_1 = var_32; VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=5, var_23=4, var_28=1, var_31=0, var_33_arg_0=-1, var_33_arg_1=0, var_39=1] [L108] EXPR ((SORT_26)var_33_arg_0 << 1) | var_33_arg_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=5, var_23=4, var_28=1, var_31=0, var_39=1] [L108] SORT_26 var_33 = ((SORT_26)var_33_arg_0 << 1) | var_33_arg_1; [L109] EXPR var_33 & mask_SORT_26 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=5, var_23=4, var_28=1, var_31=0, var_39=1] [L109] var_33 = var_33 & mask_SORT_26 [L110] SORT_26 var_34_arg_0 = var_33; [L111] SORT_1 var_34 = var_34_arg_0 == mask_SORT_26; [L112] SORT_1 var_35_arg_0 = var_28; [L113] SORT_1 var_35_arg_1 = var_34; [L114] SORT_1 var_35 = var_35_arg_0 == var_35_arg_1; [L115] SORT_1 var_36_arg_0 = var_14; [L116] SORT_1 var_36_arg_1 = var_35; VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, var_11=0, var_15=0, var_20=0, var_21=5, var_23=4, var_31=0, var_36_arg_0=-1, var_36_arg_1=1, var_39=1] [L117] EXPR var_36_arg_0 | var_36_arg_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, var_11=0, var_15=0, var_20=0, var_21=5, var_23=4, var_31=0, var_39=1] [L117] SORT_1 var_36 = var_36_arg_0 | var_36_arg_1; [L118] SORT_1 var_40_arg_0 = var_36; [L119] SORT_1 var_40 = ~var_40_arg_0; [L120] SORT_1 var_41_arg_0 = var_39; [L121] SORT_1 var_41_arg_1 = var_40; VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, var_11=0, var_15=0, var_20=0, var_21=5, var_23=4, var_31=0, var_39=1, var_41_arg_0=1, var_41_arg_1=-1] [L122] EXPR var_41_arg_0 & var_41_arg_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, var_11=0, var_15=0, var_20=0, var_21=5, var_23=4, var_31=0, var_39=1] [L122] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L123] EXPR var_41 & mask_SORT_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, state_12=0, var_11=0, var_15=0, var_20=0, var_21=5, var_23=4, var_31=0, var_39=1] [L123] var_41 = var_41 & mask_SORT_1 [L124] SORT_1 bad_42_arg_0 = var_41; [L125] CALL __VERIFIER_assert(!(bad_42_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1598 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1598 mSDsluCounter, 6228 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4629 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 913 IncrementalHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 1599 mSDtfsCounter, 913 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 36 SyntacticMatches, 4 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205occurred in iteration=14, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 93 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 685 NumberOfCodeBlocks, 685 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 624 ConstructedInterpolants, 0 QuantifiedInterpolants, 2559 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 03:47:10,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bee37cc3aa930a1b9dc8d03049770a16229b9136afc75c48614cf8a9ab0bb811 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 03:47:12,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 03:47:13,060 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-24 03:47:13,064 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 03:47:13,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 03:47:13,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 03:47:13,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 03:47:13,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 03:47:13,090 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 03:47:13,091 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 03:47:13,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 03:47:13,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 03:47:13,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 03:47:13,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 03:47:13,095 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 03:47:13,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 03:47:13,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 03:47:13,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 03:47:13,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 03:47:13,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 03:47:13,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 03:47:13,096 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 03:47:13,096 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 03:47:13,096 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 03:47:13,097 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 03:47:13,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 03:47:13,097 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 03:47:13,097 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 03:47:13,097 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 03:47:13,097 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 03:47:13,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 03:47:13,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:47:13,098 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 03:47:13,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 03:47:13,100 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 03:47:13,100 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 03:47:13,100 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 03:47:13,100 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 03:47:13,100 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 03:47:13,101 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 03:47:13,101 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 03:47:13,101 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 03:47:13,101 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bee37cc3aa930a1b9dc8d03049770a16229b9136afc75c48614cf8a9ab0bb811 [2024-10-24 03:47:13,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 03:47:13,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 03:47:13,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 03:47:13,400 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 03:47:13,404 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 03:47:13,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c [2024-10-24 03:47:14,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 03:47:15,067 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 03:47:15,069 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c [2024-10-24 03:47:15,077 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/481ce32f4/8d9b9bba0ed2426485d56912e9f5b6f1/FLAG92ebae98d [2024-10-24 03:47:15,436 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/481ce32f4/8d9b9bba0ed2426485d56912e9f5b6f1 [2024-10-24 03:47:15,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 03:47:15,439 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 03:47:15,440 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 03:47:15,440 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 03:47:15,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 03:47:15,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,446 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22197037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15, skipping insertion in model container [2024-10-24 03:47:15,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,465 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 03:47:15,597 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/hardware-verification-bv/btor2c-lazyMod.cal55.c[1245,1258] [2024-10-24 03:47:15,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:47:15,669 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 03:47:15,678 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/hardware-verification-bv/btor2c-lazyMod.cal55.c[1245,1258] [2024-10-24 03:47:15,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:47:15,757 INFO L204 MainTranslator]: Completed translation [2024-10-24 03:47:15,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15 WrapperNode [2024-10-24 03:47:15,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 03:47:15,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 03:47:15,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 03:47:15,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 03:47:15,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,800 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 204 [2024-10-24 03:47:15,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 03:47:15,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 03:47:15,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 03:47:15,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 03:47:15,809 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,815 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,824 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-10-24 03:47:15,824 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,829 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 03:47:15,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 03:47:15,836 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 03:47:15,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 03:47:15,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (1/1) ... [2024-10-24 03:47:15,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:47:15,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:47:15,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 03:47:15,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 03:47:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 03:47:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 03:47:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-24 03:47:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 03:47:15,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 03:47:16,009 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 03:47:16,012 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 03:47:16,249 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-10-24 03:47:16,249 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 03:47:16,280 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 03:47:16,281 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 03:47:16,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:47:16 BoogieIcfgContainer [2024-10-24 03:47:16,281 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 03:47:16,293 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 03:47:16,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 03:47:16,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 03:47:16,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:47:15" (1/3) ... [2024-10-24 03:47:16,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e92cd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:47:16, skipping insertion in model container [2024-10-24 03:47:16,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:47:15" (2/3) ... [2024-10-24 03:47:16,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e92cd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:47:16, skipping insertion in model container [2024-10-24 03:47:16,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:47:16" (3/3) ... [2024-10-24 03:47:16,299 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal55.c [2024-10-24 03:47:16,313 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 03:47:16,314 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 03:47:16,357 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 03:47:16,362 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;@572f885, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 03:47:16,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 03:47:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:16,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-24 03:47:16,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:16,373 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-24 03:47:16,373 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:16,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:16,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1614770, now seen corresponding path program 1 times [2024-10-24 03:47:16,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 03:47:16,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355312586] [2024-10-24 03:47:16,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:16,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 03:47:16,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 03:47:16,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 03:47:16,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 03:47:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:16,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 03:47:16,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:47:16,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:16,640 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:47:16,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 03:47:16,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355312586] [2024-10-24 03:47:16,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355312586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:47:16,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:47:16,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 03:47:16,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140332016] [2024-10-24 03:47:16,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:47:16,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:47:16,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 03:47:16,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:47:16,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:47:16,664 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:16,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:16,702 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2024-10-24 03:47:16,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:47:16,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-24 03:47:16,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:16,710 INFO L225 Difference]: With dead ends: 15 [2024-10-24 03:47:16,710 INFO L226 Difference]: Without dead ends: 9 [2024-10-24 03:47:16,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:47:16,716 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:16,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:47:16,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-10-24 03:47:16,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-10-24 03:47:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:16,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-10-24 03:47:16,737 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2024-10-24 03:47:16,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:16,738 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-10-24 03:47:16,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:16,738 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-10-24 03:47:16,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 03:47:16,739 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:16,739 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-24 03:47:16,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-24 03:47:16,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 03:47:16,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:16,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:16,944 INFO L85 PathProgramCache]: Analyzing trace with hash 865745430, now seen corresponding path program 1 times [2024-10-24 03:47:16,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 03:47:16,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617313691] [2024-10-24 03:47:16,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:47:16,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 03:47:16,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 03:47:16,949 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 03:47:16,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 03:47:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:47:17,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-24 03:47:17,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:47:17,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:17,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:47:20,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:20,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 03:47:20,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617313691] [2024-10-24 03:47:20,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617313691] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:47:20,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 03:47:20,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-24 03:47:20,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104474645] [2024-10-24 03:47:20,895 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 03:47:20,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:47:20,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 03:47:20,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:47:20,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:47:20,897 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:20,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:47:20,987 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2024-10-24 03:47:20,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:47:20,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-24 03:47:20,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:47:20,988 INFO L225 Difference]: With dead ends: 13 [2024-10-24 03:47:20,988 INFO L226 Difference]: Without dead ends: 11 [2024-10-24 03:47:20,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:47:20,989 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:47:20,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:47:20,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-10-24 03:47:20,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-10-24 03:47:20,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:20,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-10-24 03:47:20,992 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2024-10-24 03:47:20,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:47:20,992 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-10-24 03:47:20,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 03:47:20,993 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-10-24 03:47:20,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-24 03:47:20,993 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:47:20,993 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2024-10-24 03:47:21,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-24 03:47:21,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 03:47:21,194 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:47:21,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:47:21,195 INFO L85 PathProgramCache]: Analyzing trace with hash 148265266, now seen corresponding path program 2 times [2024-10-24 03:47:21,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 03:47:21,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213600709] [2024-10-24 03:47:21,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 03:47:21,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 03:47:21,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 03:47:21,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 03:47:21,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-24 03:47:21,336 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 03:47:21,337 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 03:47:21,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-10-24 03:47:21,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:47:22,359 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:47:22,359 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:48:03,525 WARN L286 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 478 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)