./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.4.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.4.prop1-func-interl.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 e0a8f2968e654de46c8089830a29766330752d0e2fa5f92aa0d2588d0d20bb45 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 17:19:59,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 17:19:59,083 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 17:19:59,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 17:19:59,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 17:19:59,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 17:19:59,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 17:19:59,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 17:19:59,112 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 17:19:59,112 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 17:19:59,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 17:19:59,112 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 17:19:59,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 17:19:59,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 17:19:59,113 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 17:19:59,114 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 17:19:59,114 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 17:19:59,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 17:19:59,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 17:19:59,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 17:19:59,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 17:19:59,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 17:19:59,118 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 17:19:59,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 17:19:59,118 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 17:19:59,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 17:19:59,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 17:19:59,119 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 17:19:59,119 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 17:19:59,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:19:59,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 17:19:59,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 17:19:59,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 17:19:59,119 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 17:19:59,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 17:19:59,120 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 17:19:59,120 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 17:19:59,120 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 17:19:59,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 17:19:59,122 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a8f2968e654de46c8089830a29766330752d0e2fa5f92aa0d2588d0d20bb45 [2024-11-18 17:19:59,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 17:19:59,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 17:19:59,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 17:19:59,390 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 17:19:59,390 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 17:19:59,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.4.prop1-func-interl.c [2024-11-18 17:20:00,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 17:20:01,132 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 17:20:01,133 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.4.prop1-func-interl.c [2024-11-18 17:20:01,173 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad74a1f7/ebf73efa721c4fffb7b1099364faabe6/FLAGc1be5073e [2024-11-18 17:20:01,268 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad74a1f7/ebf73efa721c4fffb7b1099364faabe6 [2024-11-18 17:20:01,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 17:20:01,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 17:20:01,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 17:20:01,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 17:20:01,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 17:20:01,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:20:01" (1/1) ... [2024-11-18 17:20:01,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15673b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:01, skipping insertion in model container [2024-11-18 17:20:01,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:20:01" (1/1) ... [2024-11-18 17:20:01,359 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 17:20:01,570 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.4.prop1-func-interl.c[1177,1190] [2024-11-18 17:20:02,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:20:02,209 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 17:20:02,218 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.4.prop1-func-interl.c[1177,1190] [2024-11-18 17:20:02,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:20:02,650 INFO L204 MainTranslator]: Completed translation [2024-11-18 17:20:02,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02 WrapperNode [2024-11-18 17:20:02,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 17:20:02,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 17:20:02,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 17:20:02,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 17:20:02,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (1/1) ... [2024-11-18 17:20:02,869 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (1/1) ... [2024-11-18 17:20:05,406 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26248 [2024-11-18 17:20:05,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 17:20:05,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 17:20:05,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 17:20:05,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 17:20:05,416 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (1/1) ... [2024-11-18 17:20:05,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (1/1) ... [2024-11-18 17:20:06,045 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (1/1) ... [2024-11-18 17:20:06,328 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 17:20:06,328 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (1/1) ... [2024-11-18 17:20:06,328 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (1/1) ... [2024-11-18 17:20:07,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (1/1) ... [2024-11-18 17:20:07,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (1/1) ... [2024-11-18 17:20:07,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (1/1) ... [2024-11-18 17:20:07,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (1/1) ... [2024-11-18 17:20:08,072 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 17:20:08,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 17:20:08,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 17:20:08,073 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 17:20:08,074 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (1/1) ... [2024-11-18 17:20:08,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:20:08,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:20:08,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 17:20:08,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 17:20:08,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 17:20:08,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 17:20:08,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 17:20:08,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 17:20:09,138 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 17:20:09,140 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 17:21:08,361 INFO L? ?]: Removed 14705 outVars from TransFormulas that were not future-live. [2024-11-18 17:21:08,362 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 17:21:08,446 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 17:21:08,446 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 17:21:08,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:21:08 BoogieIcfgContainer [2024-11-18 17:21:08,447 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 17:21:08,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 17:21:08,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 17:21:08,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 17:21:08,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:20:01" (1/3) ... [2024-11-18 17:21:08,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8d23d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:21:08, skipping insertion in model container [2024-11-18 17:21:08,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:20:02" (2/3) ... [2024-11-18 17:21:08,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8d23d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:21:08, skipping insertion in model container [2024-11-18 17:21:08,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:21:08" (3/3) ... [2024-11-18 17:21:08,454 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.extinction.4.prop1-func-interl.c [2024-11-18 17:21:08,467 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 17:21:08,467 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 17:21:08,605 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 17:21:08,610 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;@4a0713f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 17:21:08,611 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 17:21:08,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 9232 states, 9230 states have (on average 1.5028169014084507) internal successors, (13871), 9231 states have internal predecessors, (13871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:08,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-18 17:21:08,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:21:08,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:21:08,665 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:21:08,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:21:08,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1098846559, now seen corresponding path program 1 times [2024-11-18 17:21:08,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:21:08,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628148701] [2024-11-18 17:21:08,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:21:08,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:21:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:21:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:21:10,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:21:10,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628148701] [2024-11-18 17:21:10,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628148701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:21:10,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:21:10,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:21:10,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885291112] [2024-11-18 17:21:10,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:21:10,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:21:10,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:21:10,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:21:10,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:21:10,309 INFO L87 Difference]: Start difference. First operand has 9232 states, 9230 states have (on average 1.5028169014084507) internal successors, (13871), 9231 states have internal predecessors, (13871), 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 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:17,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:21:17,335 INFO L93 Difference]: Finished difference Result 26890 states and 40411 transitions. [2024-11-18 17:21:17,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:21:17,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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 365 [2024-11-18 17:21:17,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:21:17,407 INFO L225 Difference]: With dead ends: 26890 [2024-11-18 17:21:17,408 INFO L226 Difference]: Without dead ends: 18052 [2024-11-18 17:21:17,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:21:17,430 INFO L432 NwaCegarLoop]: 10741 mSDtfsCounter, 13494 mSDsluCounter, 31874 mSDsCounter, 0 mSdLazyCounter, 12264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13494 SdHoareTripleChecker+Valid, 42615 SdHoareTripleChecker+Invalid, 12265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-18 17:21:17,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13494 Valid, 42615 Invalid, 12265 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12264 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-18 17:21:17,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18052 states. [2024-11-18 17:21:17,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18052 to 9544. [2024-11-18 17:21:17,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9544 states, 9543 states have (on average 1.5024625379859582) internal successors, (14338), 9543 states have internal predecessors, (14338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:17,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9544 states to 9544 states and 14338 transitions. [2024-11-18 17:21:17,724 INFO L78 Accepts]: Start accepts. Automaton has 9544 states and 14338 transitions. Word has length 365 [2024-11-18 17:21:17,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:21:17,726 INFO L471 AbstractCegarLoop]: Abstraction has 9544 states and 14338 transitions. [2024-11-18 17:21:17,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:17,727 INFO L276 IsEmpty]: Start isEmpty. Operand 9544 states and 14338 transitions. [2024-11-18 17:21:17,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-18 17:21:17,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:21:17,731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:21:17,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 17:21:17,731 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:21:17,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:21:17,732 INFO L85 PathProgramCache]: Analyzing trace with hash -725533124, now seen corresponding path program 1 times [2024-11-18 17:21:17,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:21:17,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479547904] [2024-11-18 17:21:17,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:21:17,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:21:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:21:18,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:21:18,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:21:18,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479547904] [2024-11-18 17:21:18,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479547904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:21:18,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:21:18,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:21:18,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753714702] [2024-11-18 17:21:18,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:21:18,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:21:18,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:21:18,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:21:18,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:21:18,525 INFO L87 Difference]: Start difference. First operand 9544 states and 14338 transitions. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:18,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:21:18,651 INFO L93 Difference]: Finished difference Result 9548 states and 14342 transitions. [2024-11-18 17:21:18,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:21:18,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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 367 [2024-11-18 17:21:18,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:21:18,678 INFO L225 Difference]: With dead ends: 9548 [2024-11-18 17:21:18,679 INFO L226 Difference]: Without dead ends: 9546 [2024-11-18 17:21:18,686 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 [2024-11-18 17:21:18,687 INFO L432 NwaCegarLoop]: 13865 mSDtfsCounter, 0 mSDsluCounter, 27724 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41589 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 [2024-11-18 17:21:18,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41589 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:21:18,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9546 states. [2024-11-18 17:21:18,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9546 to 9546. [2024-11-18 17:21:18,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9546 states, 9545 states have (on average 1.502357255107386) internal successors, (14340), 9545 states have internal predecessors, (14340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:18,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9546 states to 9546 states and 14340 transitions. [2024-11-18 17:21:18,834 INFO L78 Accepts]: Start accepts. Automaton has 9546 states and 14340 transitions. Word has length 367 [2024-11-18 17:21:18,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:21:18,835 INFO L471 AbstractCegarLoop]: Abstraction has 9546 states and 14340 transitions. [2024-11-18 17:21:18,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:18,836 INFO L276 IsEmpty]: Start isEmpty. Operand 9546 states and 14340 transitions. [2024-11-18 17:21:18,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-18 17:21:18,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:21:18,840 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:21:18,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 17:21:18,840 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:21:18,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:21:18,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1014992871, now seen corresponding path program 1 times [2024-11-18 17:21:18,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:21:18,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560195616] [2024-11-18 17:21:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:21:18,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:21:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:21:19,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:21:19,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:21:19,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560195616] [2024-11-18 17:21:19,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560195616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:21:19,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:21:19,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:21:19,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679488023] [2024-11-18 17:21:19,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:21:19,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:21:19,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:21:19,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:21:19,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:21:19,316 INFO L87 Difference]: Start difference. First operand 9546 states and 14340 transitions. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:19,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:21:19,454 INFO L93 Difference]: Finished difference Result 18385 states and 27622 transitions. [2024-11-18 17:21:19,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:21:19,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 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 368 [2024-11-18 17:21:19,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:21:19,480 INFO L225 Difference]: With dead ends: 18385 [2024-11-18 17:21:19,480 INFO L226 Difference]: Without dead ends: 9548 [2024-11-18 17:21:19,491 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 [2024-11-18 17:21:19,494 INFO L432 NwaCegarLoop]: 13865 mSDtfsCounter, 0 mSDsluCounter, 27720 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41585 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 [2024-11-18 17:21:19,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41585 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:21:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9548 states. [2024-11-18 17:21:19,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9548 to 9548. [2024-11-18 17:21:19,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9548 states, 9547 states have (on average 1.5022520163402115) internal successors, (14342), 9547 states have internal predecessors, (14342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:19,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9548 states to 9548 states and 14342 transitions. [2024-11-18 17:21:19,652 INFO L78 Accepts]: Start accepts. Automaton has 9548 states and 14342 transitions. Word has length 368 [2024-11-18 17:21:19,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:21:19,653 INFO L471 AbstractCegarLoop]: Abstraction has 9548 states and 14342 transitions. [2024-11-18 17:21:19,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:19,654 INFO L276 IsEmpty]: Start isEmpty. Operand 9548 states and 14342 transitions. [2024-11-18 17:21:19,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-18 17:21:19,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:21:19,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:21:19,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 17:21:19,660 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:21:19,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:21:19,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1796995765, now seen corresponding path program 1 times [2024-11-18 17:21:19,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:21:19,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359033821] [2024-11-18 17:21:19,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:21:19,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:21:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:21:20,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:21:20,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:21:20,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359033821] [2024-11-18 17:21:20,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359033821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:21:20,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:21:20,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:21:20,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668153904] [2024-11-18 17:21:20,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:21:20,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:21:20,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:21:20,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:21:20,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:21:20,279 INFO L87 Difference]: Start difference. First operand 9548 states and 14342 transitions. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:20,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:21:20,419 INFO L93 Difference]: Finished difference Result 18389 states and 27626 transitions. [2024-11-18 17:21:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:21:20,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 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 369 [2024-11-18 17:21:20,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:21:20,432 INFO L225 Difference]: With dead ends: 18389 [2024-11-18 17:21:20,432 INFO L226 Difference]: Without dead ends: 9550 [2024-11-18 17:21:20,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:21:20,445 INFO L432 NwaCegarLoop]: 13865 mSDtfsCounter, 0 mSDsluCounter, 27714 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41579 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:21:20,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41579 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:21:20,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9550 states. [2024-11-18 17:21:20,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9550 to 9550. [2024-11-18 17:21:20,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9550 states, 9549 states have (on average 1.502146821656718) internal successors, (14344), 9549 states have internal predecessors, (14344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:20,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9550 states to 9550 states and 14344 transitions. [2024-11-18 17:21:20,591 INFO L78 Accepts]: Start accepts. Automaton has 9550 states and 14344 transitions. Word has length 369 [2024-11-18 17:21:20,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:21:20,591 INFO L471 AbstractCegarLoop]: Abstraction has 9550 states and 14344 transitions. [2024-11-18 17:21:20,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:20,592 INFO L276 IsEmpty]: Start isEmpty. Operand 9550 states and 14344 transitions. [2024-11-18 17:21:20,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2024-11-18 17:21:20,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:21:20,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:21:20,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 17:21:20,596 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:21:20,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:21:20,596 INFO L85 PathProgramCache]: Analyzing trace with hash 781183008, now seen corresponding path program 1 times [2024-11-18 17:21:20,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:21:20,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012833439] [2024-11-18 17:21:20,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:21:20,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:21:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:21:21,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:21:21,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:21:21,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012833439] [2024-11-18 17:21:21,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012833439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:21:21,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:21:21,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:21:21,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970352409] [2024-11-18 17:21:21,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:21:21,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:21:21,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:21:21,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:21:21,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:21:21,269 INFO L87 Difference]: Start difference. First operand 9550 states and 14344 transitions. Second operand has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:25,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:21:25,596 INFO L93 Difference]: Finished difference Result 18389 states and 27625 transitions. [2024-11-18 17:21:25,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:21:25,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 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 370 [2024-11-18 17:21:25,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:21:25,609 INFO L225 Difference]: With dead ends: 18389 [2024-11-18 17:21:25,610 INFO L226 Difference]: Without dead ends: 9548 [2024-11-18 17:21:25,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:21:25,621 INFO L432 NwaCegarLoop]: 10731 mSDtfsCounter, 13508 mSDsluCounter, 21450 mSDsCounter, 0 mSdLazyCounter, 9404 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13508 SdHoareTripleChecker+Valid, 32181 SdHoareTripleChecker+Invalid, 9405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:21:25,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13508 Valid, 32181 Invalid, 9405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 9404 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-18 17:21:25,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9548 states. [2024-11-18 17:21:25,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9548 to 9548. [2024-11-18 17:21:25,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9548 states, 9547 states have (on average 1.5020425264480988) internal successors, (14340), 9547 states have internal predecessors, (14340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:25,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9548 states to 9548 states and 14340 transitions. [2024-11-18 17:21:25,742 INFO L78 Accepts]: Start accepts. Automaton has 9548 states and 14340 transitions. Word has length 370 [2024-11-18 17:21:25,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:21:25,742 INFO L471 AbstractCegarLoop]: Abstraction has 9548 states and 14340 transitions. [2024-11-18 17:21:25,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:21:25,743 INFO L276 IsEmpty]: Start isEmpty. Operand 9548 states and 14340 transitions. [2024-11-18 17:21:25,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-11-18 17:21:25,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:21:25,746 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:21:25,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 17:21:25,746 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:21:25,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:21:25,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1233781902, now seen corresponding path program 1 times [2024-11-18 17:21:25,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:21:25,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209642639] [2024-11-18 17:21:25,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:21:25,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:21:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 17:21:25,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 17:21:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 17:21:26,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 17:21:26,229 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 17:21:26,230 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 17:21:26,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 17:21:26,234 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]