./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.fischer.1.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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.fischer.1.prop1-back-serstep.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 2f5d1caac7bf708c4119c29d798b4046bdc15eade373db47a79a21cda9801b3b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 22:48:19,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 22:48:19,617 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-12 22:48:19,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 22:48:19,626 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 22:48:19,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 22:48:19,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 22:48:19,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 22:48:19,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 22:48:19,662 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 22:48:19,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 22:48:19,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 22:48:19,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 22:48:19,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 22:48:19,664 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 22:48:19,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 22:48:19,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 22:48:19,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 22:48:19,667 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 22:48:19,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 22:48:19,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 22:48:19,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 22:48:19,672 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 22:48:19,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 22:48:19,672 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 22:48:19,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 22:48:19,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 22:48:19,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 22:48:19,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 22:48:19,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:48:19,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 22:48:19,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 22:48:19,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 22:48:19,675 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 22:48:19,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 22:48:19,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 22:48:19,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 22:48:19,678 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 22:48:19,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 22:48:19,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f5d1caac7bf708c4119c29d798b4046bdc15eade373db47a79a21cda9801b3b [2024-10-12 22:48:19,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 22:48:19,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 22:48:19,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 22:48:19,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 22:48:19,967 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 22:48:19,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-back-serstep.c [2024-10-12 22:48:21,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 22:48:21,760 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 22:48:21,761 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-back-serstep.c [2024-10-12 22:48:21,776 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c46b296/f3364de68e7349d58019ead452664483/FLAG861d453f9 [2024-10-12 22:48:21,789 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c46b296/f3364de68e7349d58019ead452664483 [2024-10-12 22:48:21,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 22:48:21,793 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 22:48:21,795 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 22:48:21,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 22:48:21,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 22:48:21,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:48:21" (1/1) ... [2024-10-12 22:48:21,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@196f23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:21, skipping insertion in model container [2024-10-12 22:48:21,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:48:21" (1/1) ... [2024-10-12 22:48:21,876 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 22:48:22,091 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.fischer.1.prop1-back-serstep.c[1175,1188] [2024-10-12 22:48:22,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:48:22,414 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 22:48:22,423 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.fischer.1.prop1-back-serstep.c[1175,1188] [2024-10-12 22:48:22,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:48:22,560 INFO L204 MainTranslator]: Completed translation [2024-10-12 22:48:22,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22 WrapperNode [2024-10-12 22:48:22,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 22:48:22,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 22:48:22,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 22:48:22,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 22:48:22,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (1/1) ... [2024-10-12 22:48:22,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (1/1) ... [2024-10-12 22:48:23,147 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4038 [2024-10-12 22:48:23,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 22:48:23,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 22:48:23,149 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 22:48:23,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 22:48:23,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (1/1) ... [2024-10-12 22:48:23,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (1/1) ... [2024-10-12 22:48:23,252 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (1/1) ... [2024-10-12 22:48:23,389 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 22:48:23,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (1/1) ... [2024-10-12 22:48:23,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (1/1) ... [2024-10-12 22:48:23,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (1/1) ... [2024-10-12 22:48:23,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (1/1) ... [2024-10-12 22:48:23,571 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (1/1) ... [2024-10-12 22:48:23,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (1/1) ... [2024-10-12 22:48:23,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 22:48:23,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 22:48:23,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 22:48:23,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 22:48:23,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (1/1) ... [2024-10-12 22:48:23,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:48:23,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:48:23,712 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) [2024-10-12 22:48:23,714 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 [2024-10-12 22:48:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 22:48:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 22:48:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 22:48:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 22:48:24,054 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 22:48:24,059 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 22:48:28,187 INFO L? ?]: Removed 2217 outVars from TransFormulas that were not future-live. [2024-10-12 22:48:28,187 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 22:48:28,308 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 22:48:28,309 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 22:48:28,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:48:28 BoogieIcfgContainer [2024-10-12 22:48:28,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 22:48:28,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 22:48:28,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 22:48:28,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 22:48:28,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:48:21" (1/3) ... [2024-10-12 22:48:28,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149814db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:48:28, skipping insertion in model container [2024-10-12 22:48:28,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:48:22" (2/3) ... [2024-10-12 22:48:28,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149814db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:48:28, skipping insertion in model container [2024-10-12 22:48:28,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:48:28" (3/3) ... [2024-10-12 22:48:28,319 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.1.prop1-back-serstep.c [2024-10-12 22:48:28,337 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 22:48:28,337 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 22:48:28,443 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 22:48:28,452 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;@10f48da9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 22:48:28,452 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 22:48:28,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 1371 states, 1369 states have (on average 1.50036523009496) internal successors, (2054), 1370 states have internal predecessors, (2054), 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) [2024-10-12 22:48:28,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-12 22:48:28,481 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:28,482 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] [2024-10-12 22:48:28,483 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:28,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:28,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1706277485, now seen corresponding path program 1 times [2024-10-12 22:48:28,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:28,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797275153] [2024-10-12 22:48:28,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:28,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:29,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:48:29,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:29,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797275153] [2024-10-12 22:48:29,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797275153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:29,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:29,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:48:29,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592023925] [2024-10-12 22:48:29,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:29,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:48:29,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:29,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:48:29,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:48:29,735 INFO L87 Difference]: Start difference. First operand has 1371 states, 1369 states have (on average 1.50036523009496) internal successors, (2054), 1370 states have internal predecessors, (2054), 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 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2024-10-12 22:48:29,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:29,871 INFO L93 Difference]: Finished difference Result 2666 states and 3996 transitions. [2024-10-12 22:48:29,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:48:29,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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 156 [2024-10-12 22:48:29,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:29,902 INFO L225 Difference]: With dead ends: 2666 [2024-10-12 22:48:29,902 INFO L226 Difference]: Without dead ends: 1372 [2024-10-12 22:48:29,912 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 [2024-10-12 22:48:29,916 INFO L432 NwaCegarLoop]: 2049 mSDtfsCounter, 0 mSDsluCounter, 4093 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6142 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 [2024-10-12 22:48:29,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6142 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:29,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2024-10-12 22:48:30,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1372. [2024-10-12 22:48:30,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1371 states have (on average 1.4981765134938) internal successors, (2054), 1371 states have internal predecessors, (2054), 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) [2024-10-12 22:48:30,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 2054 transitions. [2024-10-12 22:48:30,021 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 2054 transitions. Word has length 156 [2024-10-12 22:48:30,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:30,023 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 2054 transitions. [2024-10-12 22:48:30,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2024-10-12 22:48:30,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 2054 transitions. [2024-10-12 22:48:30,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-12 22:48:30,031 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:30,032 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] [2024-10-12 22:48:30,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 22:48:30,032 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:30,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:30,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1353298342, now seen corresponding path program 1 times [2024-10-12 22:48:30,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:30,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186490625] [2024-10-12 22:48:30,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:30,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:48:30,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:30,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186490625] [2024-10-12 22:48:30,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186490625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:30,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:30,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:48:30,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362334623] [2024-10-12 22:48:30,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:30,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:48:30,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:30,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:48:30,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:48:30,520 INFO L87 Difference]: Start difference. First operand 1372 states and 2054 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2024-10-12 22:48:30,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:30,598 INFO L93 Difference]: Finished difference Result 2669 states and 3996 transitions. [2024-10-12 22:48:30,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:48:30,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 157 [2024-10-12 22:48:30,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:30,607 INFO L225 Difference]: With dead ends: 2669 [2024-10-12 22:48:30,608 INFO L226 Difference]: Without dead ends: 1374 [2024-10-12 22:48:30,613 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 [2024-10-12 22:48:30,615 INFO L432 NwaCegarLoop]: 2049 mSDtfsCounter, 0 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6139 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 [2024-10-12 22:48:30,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6139 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:30,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2024-10-12 22:48:30,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1374. [2024-10-12 22:48:30,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1373 states have (on average 1.4974508375819373) internal successors, (2056), 1373 states have internal predecessors, (2056), 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) [2024-10-12 22:48:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 2056 transitions. [2024-10-12 22:48:30,645 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 2056 transitions. Word has length 157 [2024-10-12 22:48:30,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:30,646 INFO L471 AbstractCegarLoop]: Abstraction has 1374 states and 2056 transitions. [2024-10-12 22:48:30,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2024-10-12 22:48:30,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 2056 transitions. [2024-10-12 22:48:30,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-12 22:48:30,651 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:30,652 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] [2024-10-12 22:48:30,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 22:48:30,652 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:30,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:30,653 INFO L85 PathProgramCache]: Analyzing trace with hash -100540596, now seen corresponding path program 1 times [2024-10-12 22:48:30,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:30,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047762610] [2024-10-12 22:48:30,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:30,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:31,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:48:31,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:31,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047762610] [2024-10-12 22:48:31,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047762610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:31,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:31,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:48:31,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769127323] [2024-10-12 22:48:31,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:31,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:48:31,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:31,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:48:31,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:48:31,028 INFO L87 Difference]: Start difference. First operand 1374 states and 2056 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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) [2024-10-12 22:48:31,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:31,096 INFO L93 Difference]: Finished difference Result 2673 states and 4000 transitions. [2024-10-12 22:48:31,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:48:31,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 158 [2024-10-12 22:48:31,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:31,103 INFO L225 Difference]: With dead ends: 2673 [2024-10-12 22:48:31,104 INFO L226 Difference]: Without dead ends: 1376 [2024-10-12 22:48:31,105 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 [2024-10-12 22:48:31,107 INFO L432 NwaCegarLoop]: 2049 mSDtfsCounter, 0 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6139 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 [2024-10-12 22:48:31,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6139 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:31,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2024-10-12 22:48:31,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1376. [2024-10-12 22:48:31,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1375 states have (on average 1.4967272727272727) internal successors, (2058), 1375 states have internal predecessors, (2058), 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) [2024-10-12 22:48:31,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 2058 transitions. [2024-10-12 22:48:31,141 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 2058 transitions. Word has length 158 [2024-10-12 22:48:31,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:31,142 INFO L471 AbstractCegarLoop]: Abstraction has 1376 states and 2058 transitions. [2024-10-12 22:48:31,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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) [2024-10-12 22:48:31,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 2058 transitions. [2024-10-12 22:48:31,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-12 22:48:31,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:31,146 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] [2024-10-12 22:48:31,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 22:48:31,149 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:31,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:31,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2087096609, now seen corresponding path program 1 times [2024-10-12 22:48:31,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:31,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819889839] [2024-10-12 22:48:31,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:31,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:31,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:48:31,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:31,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819889839] [2024-10-12 22:48:31,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819889839] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:31,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:31,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:48:31,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588503569] [2024-10-12 22:48:31,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:31,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:48:31,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:31,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:48:31,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:48:31,625 INFO L87 Difference]: Start difference. First operand 1376 states and 2058 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 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) [2024-10-12 22:48:31,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:31,789 INFO L93 Difference]: Finished difference Result 3952 states and 5913 transitions. [2024-10-12 22:48:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 22:48:31,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 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 159 [2024-10-12 22:48:31,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:31,800 INFO L225 Difference]: With dead ends: 3952 [2024-10-12 22:48:31,800 INFO L226 Difference]: Without dead ends: 2653 [2024-10-12 22:48:31,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 22:48:31,804 INFO L432 NwaCegarLoop]: 2047 mSDtfsCounter, 1873 mSDsluCounter, 6023 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 8070 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:48:31,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 8070 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:31,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2024-10-12 22:48:31,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 1596. [2024-10-12 22:48:31,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1595 states have (on average 1.49717868338558) internal successors, (2388), 1595 states have internal predecessors, (2388), 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) [2024-10-12 22:48:31,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2388 transitions. [2024-10-12 22:48:31,857 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2388 transitions. Word has length 159 [2024-10-12 22:48:31,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:31,858 INFO L471 AbstractCegarLoop]: Abstraction has 1596 states and 2388 transitions. [2024-10-12 22:48:31,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 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) [2024-10-12 22:48:31,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2388 transitions. [2024-10-12 22:48:31,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2024-10-12 22:48:31,880 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:31,882 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:48:31,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 22:48:31,883 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:31,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:31,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1457847096, now seen corresponding path program 1 times [2024-10-12 22:48:31,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:31,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091799786] [2024-10-12 22:48:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:31,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:34,580 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-10-12 22:48:34,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:34,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091799786] [2024-10-12 22:48:34,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091799786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:34,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:34,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:48:34,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134138595] [2024-10-12 22:48:34,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:34,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:48:34,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:34,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:48:34,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:48:34,586 INFO L87 Difference]: Start difference. First operand 1596 states and 2388 transitions. Second operand has 5 states, 5 states have (on average 139.8) internal successors, (699), 5 states have internal predecessors, (699), 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) [2024-10-12 22:48:34,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:34,666 INFO L93 Difference]: Finished difference Result 2901 states and 4340 transitions. [2024-10-12 22:48:34,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:48:34,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 139.8) internal successors, (699), 5 states have internal predecessors, (699), 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 806 [2024-10-12 22:48:34,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:34,676 INFO L225 Difference]: With dead ends: 2901 [2024-10-12 22:48:34,676 INFO L226 Difference]: Without dead ends: 1600 [2024-10-12 22:48:34,679 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 [2024-10-12 22:48:34,680 INFO L432 NwaCegarLoop]: 2049 mSDtfsCounter, 0 mSDsluCounter, 6134 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8183 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:48:34,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8183 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:34,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-10-12 22:48:34,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1598. [2024-10-12 22:48:34,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1597 states have (on average 1.4965560425798372) internal successors, (2390), 1597 states have internal predecessors, (2390), 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) [2024-10-12 22:48:34,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2390 transitions. [2024-10-12 22:48:34,716 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2390 transitions. Word has length 806 [2024-10-12 22:48:34,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:34,718 INFO L471 AbstractCegarLoop]: Abstraction has 1598 states and 2390 transitions. [2024-10-12 22:48:34,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 139.8) internal successors, (699), 5 states have internal predecessors, (699), 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) [2024-10-12 22:48:34,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2390 transitions. [2024-10-12 22:48:34,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2024-10-12 22:48:34,736 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:34,738 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:48:34,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 22:48:34,739 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:34,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1129392834, now seen corresponding path program 1 times [2024-10-12 22:48:34,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:34,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223082127] [2024-10-12 22:48:34,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:34,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:36,931 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-10-12 22:48:36,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:36,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223082127] [2024-10-12 22:48:36,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223082127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:36,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:36,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:48:36,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219280616] [2024-10-12 22:48:36,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:36,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:48:36,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:36,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:48:36,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:48:36,937 INFO L87 Difference]: Start difference. First operand 1598 states and 2390 transitions. Second operand has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 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) [2024-10-12 22:48:37,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:37,010 INFO L93 Difference]: Finished difference Result 2909 states and 4350 transitions. [2024-10-12 22:48:37,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:48:37,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 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 807 [2024-10-12 22:48:37,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:37,018 INFO L225 Difference]: With dead ends: 2909 [2024-10-12 22:48:37,018 INFO L226 Difference]: Without dead ends: 1602 [2024-10-12 22:48:37,021 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 [2024-10-12 22:48:37,025 INFO L432 NwaCegarLoop]: 2049 mSDtfsCounter, 0 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6139 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 [2024-10-12 22:48:37,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6139 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:37,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2024-10-12 22:48:37,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1600. [2024-10-12 22:48:37,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1599 states have (on average 1.4959349593495934) internal successors, (2392), 1599 states have internal predecessors, (2392), 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) [2024-10-12 22:48:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2392 transitions. [2024-10-12 22:48:37,062 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2392 transitions. Word has length 807 [2024-10-12 22:48:37,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:37,064 INFO L471 AbstractCegarLoop]: Abstraction has 1600 states and 2392 transitions. [2024-10-12 22:48:37,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 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) [2024-10-12 22:48:37,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2392 transitions. [2024-10-12 22:48:37,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2024-10-12 22:48:37,091 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:37,092 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:48:37,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 22:48:37,093 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:37,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:37,093 INFO L85 PathProgramCache]: Analyzing trace with hash 712079055, now seen corresponding path program 1 times [2024-10-12 22:48:37,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:37,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223700775] [2024-10-12 22:48:37,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:37,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-12 22:48:38,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:38,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223700775] [2024-10-12 22:48:38,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223700775] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:38,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:38,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:48:38,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106664863] [2024-10-12 22:48:38,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:38,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:48:38,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:38,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:48:38,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:48:39,000 INFO L87 Difference]: Start difference. First operand 1600 states and 2392 transitions. Second operand has 4 states, 4 states have (on average 176.25) internal successors, (705), 4 states have internal predecessors, (705), 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) [2024-10-12 22:48:39,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:39,067 INFO L93 Difference]: Finished difference Result 2917 states and 4360 transitions. [2024-10-12 22:48:39,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:48:39,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 176.25) internal successors, (705), 4 states have internal predecessors, (705), 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 808 [2024-10-12 22:48:39,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:39,075 INFO L225 Difference]: With dead ends: 2917 [2024-10-12 22:48:39,075 INFO L226 Difference]: Without dead ends: 1604 [2024-10-12 22:48:39,077 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 [2024-10-12 22:48:39,081 INFO L432 NwaCegarLoop]: 2049 mSDtfsCounter, 0 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6139 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 [2024-10-12 22:48:39,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6139 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:39,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2024-10-12 22:48:39,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1602. [2024-10-12 22:48:39,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1602 states, 1601 states have (on average 1.495315427857589) internal successors, (2394), 1601 states have internal predecessors, (2394), 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) [2024-10-12 22:48:39,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 2394 transitions. [2024-10-12 22:48:39,116 INFO L78 Accepts]: Start accepts. Automaton has 1602 states and 2394 transitions. Word has length 808 [2024-10-12 22:48:39,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:39,118 INFO L471 AbstractCegarLoop]: Abstraction has 1602 states and 2394 transitions. [2024-10-12 22:48:39,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 176.25) internal successors, (705), 4 states have internal predecessors, (705), 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) [2024-10-12 22:48:39,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1602 states and 2394 transitions. [2024-10-12 22:48:39,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2024-10-12 22:48:39,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:39,138 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:48:39,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 22:48:39,139 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:39,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:39,140 INFO L85 PathProgramCache]: Analyzing trace with hash -708310345, now seen corresponding path program 1 times [2024-10-12 22:48:39,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:39,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286310533] [2024-10-12 22:48:39,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:39,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:40,952 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-10-12 22:48:40,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:40,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286310533] [2024-10-12 22:48:40,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286310533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:40,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:40,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:48:40,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196538631] [2024-10-12 22:48:40,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:40,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:48:40,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:40,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:48:40,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:48:40,957 INFO L87 Difference]: Start difference. First operand 1602 states and 2394 transitions. Second operand has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 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) [2024-10-12 22:48:41,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:41,033 INFO L93 Difference]: Finished difference Result 2925 states and 4370 transitions. [2024-10-12 22:48:41,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:48:41,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 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 809 [2024-10-12 22:48:41,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:41,041 INFO L225 Difference]: With dead ends: 2925 [2024-10-12 22:48:41,041 INFO L226 Difference]: Without dead ends: 1606 [2024-10-12 22:48:41,043 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 [2024-10-12 22:48:41,044 INFO L432 NwaCegarLoop]: 2049 mSDtfsCounter, 0 mSDsluCounter, 6134 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8183 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:48:41,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8183 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:41,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2024-10-12 22:48:41,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2024-10-12 22:48:41,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1603 states have (on average 1.4946974422956956) internal successors, (2396), 1603 states have internal predecessors, (2396), 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) [2024-10-12 22:48:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2396 transitions. [2024-10-12 22:48:41,139 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2396 transitions. Word has length 809 [2024-10-12 22:48:41,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:41,140 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2396 transitions. [2024-10-12 22:48:41,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 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) [2024-10-12 22:48:41,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2396 transitions. [2024-10-12 22:48:41,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2024-10-12 22:48:41,148 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:41,150 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:48:41,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 22:48:41,151 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:41,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:41,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1008433706, now seen corresponding path program 1 times [2024-10-12 22:48:41,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:41,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151111569] [2024-10-12 22:48:41,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:41,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:42,899 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-10-12 22:48:42,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:42,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151111569] [2024-10-12 22:48:42,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151111569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:42,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:42,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:48:42,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549342524] [2024-10-12 22:48:42,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:42,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:48:42,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:42,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:48:42,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:48:42,906 INFO L87 Difference]: Start difference. First operand 1604 states and 2396 transitions. Second operand has 4 states, 4 states have (on average 177.75) internal successors, (711), 4 states have internal predecessors, (711), 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) [2024-10-12 22:48:42,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:42,985 INFO L93 Difference]: Finished difference Result 2933 states and 4380 transitions. [2024-10-12 22:48:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:48:42,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 177.75) internal successors, (711), 4 states have internal predecessors, (711), 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 810 [2024-10-12 22:48:42,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:42,996 INFO L225 Difference]: With dead ends: 2933 [2024-10-12 22:48:42,996 INFO L226 Difference]: Without dead ends: 1608 [2024-10-12 22:48:42,998 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 [2024-10-12 22:48:43,000 INFO L432 NwaCegarLoop]: 2049 mSDtfsCounter, 0 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6133 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:48:43,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6133 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:43,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-10-12 22:48:43,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1606. [2024-10-12 22:48:43,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.4940809968847353) internal successors, (2398), 1605 states have internal predecessors, (2398), 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) [2024-10-12 22:48:43,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2398 transitions. [2024-10-12 22:48:43,038 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2398 transitions. Word has length 810 [2024-10-12 22:48:43,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:43,039 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 2398 transitions. [2024-10-12 22:48:43,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 177.75) internal successors, (711), 4 states have internal predecessors, (711), 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) [2024-10-12 22:48:43,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2398 transitions. [2024-10-12 22:48:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2024-10-12 22:48:43,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:43,052 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:48:43,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 22:48:43,053 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:43,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1457992912, now seen corresponding path program 1 times [2024-10-12 22:48:43,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:43,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117034200] [2024-10-12 22:48:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:43,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:44,821 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-10-12 22:48:44,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:44,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117034200] [2024-10-12 22:48:44,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117034200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:44,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:44,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:48:44,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895033954] [2024-10-12 22:48:44,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:44,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:48:44,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:44,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:48:44,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:48:44,825 INFO L87 Difference]: Start difference. First operand 1606 states and 2398 transitions. Second operand has 4 states, 4 states have (on average 178.5) internal successors, (714), 4 states have internal predecessors, (714), 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) [2024-10-12 22:48:44,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:44,880 INFO L93 Difference]: Finished difference Result 2947 states and 4398 transitions. [2024-10-12 22:48:44,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:48:44,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 178.5) internal successors, (714), 4 states have internal predecessors, (714), 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 811 [2024-10-12 22:48:44,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:44,887 INFO L225 Difference]: With dead ends: 2947 [2024-10-12 22:48:44,888 INFO L226 Difference]: Without dead ends: 1620 [2024-10-12 22:48:44,890 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 [2024-10-12 22:48:44,890 INFO L432 NwaCegarLoop]: 2049 mSDtfsCounter, 3 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6139 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 [2024-10-12 22:48:44,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6139 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:44,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2024-10-12 22:48:44,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1610. [2024-10-12 22:48:44,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1609 states have (on average 1.4940957116221256) internal successors, (2404), 1609 states have internal predecessors, (2404), 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) [2024-10-12 22:48:44,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2404 transitions. [2024-10-12 22:48:44,921 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2404 transitions. Word has length 811 [2024-10-12 22:48:44,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:44,923 INFO L471 AbstractCegarLoop]: Abstraction has 1610 states and 2404 transitions. [2024-10-12 22:48:44,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 178.5) internal successors, (714), 4 states have internal predecessors, (714), 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) [2024-10-12 22:48:44,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2404 transitions. [2024-10-12 22:48:44,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2024-10-12 22:48:44,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:44,932 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:48:44,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 22:48:44,932 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:44,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:44,933 INFO L85 PathProgramCache]: Analyzing trace with hash -517742115, now seen corresponding path program 1 times [2024-10-12 22:48:44,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:44,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677784599] [2024-10-12 22:48:44,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:44,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:46,288 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-10-12 22:48:46,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:46,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677784599] [2024-10-12 22:48:46,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677784599] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:46,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:46,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:48:46,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315231255] [2024-10-12 22:48:46,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:46,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:48:46,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:46,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:48:46,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:48:46,294 INFO L87 Difference]: Start difference. First operand 1610 states and 2404 transitions. Second operand has 4 states, 4 states have (on average 179.25) internal successors, (717), 4 states have internal predecessors, (717), 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) [2024-10-12 22:48:46,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:46,376 INFO L93 Difference]: Finished difference Result 2953 states and 4408 transitions. [2024-10-12 22:48:46,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:48:46,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 179.25) internal successors, (717), 4 states have internal predecessors, (717), 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 812 [2024-10-12 22:48:46,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:46,385 INFO L225 Difference]: With dead ends: 2953 [2024-10-12 22:48:46,385 INFO L226 Difference]: Without dead ends: 1614 [2024-10-12 22:48:46,388 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 [2024-10-12 22:48:46,388 INFO L432 NwaCegarLoop]: 2049 mSDtfsCounter, 0 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6133 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:48:46,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6133 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:46,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2024-10-12 22:48:46,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1612. [2024-10-12 22:48:46,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1611 states have (on average 1.4934823091247673) internal successors, (2406), 1611 states have internal predecessors, (2406), 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) [2024-10-12 22:48:46,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2406 transitions. [2024-10-12 22:48:46,426 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2406 transitions. Word has length 812 [2024-10-12 22:48:46,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:46,427 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2406 transitions. [2024-10-12 22:48:46,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 179.25) internal successors, (717), 4 states have internal predecessors, (717), 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) [2024-10-12 22:48:46,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2406 transitions. [2024-10-12 22:48:46,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2024-10-12 22:48:46,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:46,436 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:48:46,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 22:48:46,437 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:46,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:46,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2141100375, now seen corresponding path program 1 times [2024-10-12 22:48:46,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:46,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542355456] [2024-10-12 22:48:46,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:46,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:48,045 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-10-12 22:48:48,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:48,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542355456] [2024-10-12 22:48:48,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542355456] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:48,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:48,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:48:48,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198740087] [2024-10-12 22:48:48,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:48,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:48:48,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:48,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:48:48,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:48:48,050 INFO L87 Difference]: Start difference. First operand 1612 states and 2406 transitions. Second operand has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2024-10-12 22:48:48,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:48,121 INFO L93 Difference]: Finished difference Result 2967 states and 4426 transitions. [2024-10-12 22:48:48,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 22:48:48,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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 813 [2024-10-12 22:48:48,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:48,128 INFO L225 Difference]: With dead ends: 2967 [2024-10-12 22:48:48,129 INFO L226 Difference]: Without dead ends: 1626 [2024-10-12 22:48:48,131 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 [2024-10-12 22:48:48,131 INFO L432 NwaCegarLoop]: 2046 mSDtfsCounter, 4 mSDsluCounter, 4087 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6133 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:48:48,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6133 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:48,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2024-10-12 22:48:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1616. [2024-10-12 22:48:48,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1615 states have (on average 1.493498452012384) internal successors, (2412), 1615 states have internal predecessors, (2412), 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) [2024-10-12 22:48:48,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2412 transitions. [2024-10-12 22:48:48,162 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2412 transitions. Word has length 813 [2024-10-12 22:48:48,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:48,163 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2412 transitions. [2024-10-12 22:48:48,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2024-10-12 22:48:48,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2412 transitions. [2024-10-12 22:48:48,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 815 [2024-10-12 22:48:48,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:48,172 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:48:48,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 22:48:48,172 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:48,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:48,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1186937572, now seen corresponding path program 1 times [2024-10-12 22:48:48,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:48,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472273365] [2024-10-12 22:48:48,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:48,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:49,613 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-10-12 22:48:49,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:49,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472273365] [2024-10-12 22:48:49,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472273365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:49,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:48:49,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:48:49,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765467909] [2024-10-12 22:48:49,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:49,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:48:49,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:49,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:48:49,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:48:49,617 INFO L87 Difference]: Start difference. First operand 1616 states and 2412 transitions. Second operand has 4 states, 4 states have (on average 181.25) internal successors, (725), 4 states have internal predecessors, (725), 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) [2024-10-12 22:48:49,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:49,667 INFO L93 Difference]: Finished difference Result 2981 states and 4448 transitions. [2024-10-12 22:48:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:48:49,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 181.25) internal successors, (725), 4 states have internal predecessors, (725), 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 814 [2024-10-12 22:48:49,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:49,675 INFO L225 Difference]: With dead ends: 2981 [2024-10-12 22:48:49,675 INFO L226 Difference]: Without dead ends: 1628 [2024-10-12 22:48:49,677 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 [2024-10-12 22:48:49,678 INFO L432 NwaCegarLoop]: 2049 mSDtfsCounter, 4 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6139 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 [2024-10-12 22:48:49,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6139 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:48:49,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2024-10-12 22:48:49,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1622. [2024-10-12 22:48:49,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1621 states have (on average 1.4929056138186305) internal successors, (2420), 1621 states have internal predecessors, (2420), 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) [2024-10-12 22:48:49,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2420 transitions. [2024-10-12 22:48:49,709 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2420 transitions. Word has length 814 [2024-10-12 22:48:49,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:49,710 INFO L471 AbstractCegarLoop]: Abstraction has 1622 states and 2420 transitions. [2024-10-12 22:48:49,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 181.25) internal successors, (725), 4 states have internal predecessors, (725), 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) [2024-10-12 22:48:49,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2420 transitions. [2024-10-12 22:48:49,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2024-10-12 22:48:49,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:49,718 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:48:49,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 22:48:49,719 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:49,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:49,720 INFO L85 PathProgramCache]: Analyzing trace with hash -581629445, now seen corresponding path program 1 times [2024-10-12 22:48:49,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:49,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902744751] [2024-10-12 22:48:49,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:49,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:51,643 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 54 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:48:51,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:51,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902744751] [2024-10-12 22:48:51,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902744751] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 22:48:51,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306491636] [2024-10-12 22:48:51,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:51,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:48:51,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:48:51,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 22:48:51,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 22:48:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:53,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 3671 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-12 22:48:53,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:48:53,915 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 44 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:48:53,915 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 22:48:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:48:54,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306491636] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-12 22:48:54,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-12 22:48:54,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7, 14] total 27 [2024-10-12 22:48:54,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012129602] [2024-10-12 22:48:54,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:54,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 22:48:54,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:54,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 22:48:54,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2024-10-12 22:48:54,442 INFO L87 Difference]: Start difference. First operand 1622 states and 2420 transitions. Second operand has 10 states, 10 states have (on average 81.5) internal successors, (815), 10 states have internal predecessors, (815), 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) [2024-10-12 22:48:54,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:48:54,707 INFO L93 Difference]: Finished difference Result 4260 states and 6353 transitions. [2024-10-12 22:48:54,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 22:48:54,708 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 81.5) internal successors, (815), 10 states have internal predecessors, (815), 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 815 [2024-10-12 22:48:54,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:48:54,719 INFO L225 Difference]: With dead ends: 4260 [2024-10-12 22:48:54,720 INFO L226 Difference]: Without dead ends: 2935 [2024-10-12 22:48:54,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1637 GetRequests, 1611 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2024-10-12 22:48:54,723 INFO L432 NwaCegarLoop]: 3951 mSDtfsCounter, 5375 mSDsluCounter, 19865 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5375 SdHoareTripleChecker+Valid, 23816 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:48:54,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5375 Valid, 23816 Invalid, 97 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:48:54,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2024-10-12 22:48:54,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1629. [2024-10-12 22:48:54,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1628 states have (on average 1.4926289926289926) internal successors, (2430), 1628 states have internal predecessors, (2430), 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) [2024-10-12 22:48:54,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2430 transitions. [2024-10-12 22:48:54,759 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2430 transitions. Word has length 815 [2024-10-12 22:48:54,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:48:54,761 INFO L471 AbstractCegarLoop]: Abstraction has 1629 states and 2430 transitions. [2024-10-12 22:48:54,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.5) internal successors, (815), 10 states have internal predecessors, (815), 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) [2024-10-12 22:48:54,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2430 transitions. [2024-10-12 22:48:54,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2024-10-12 22:48:54,768 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:48:54,769 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:48:54,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-12 22:48:54,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-12 22:48:54,971 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:48:54,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:48:54,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1122784211, now seen corresponding path program 1 times [2024-10-12 22:48:54,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:48:54,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962084137] [2024-10-12 22:48:54,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:54,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:48:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:56,523 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 54 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:48:56,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:48:56,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962084137] [2024-10-12 22:48:56,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962084137] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 22:48:56,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74669238] [2024-10-12 22:48:56,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:48:56,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:48:56,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:48:56,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 22:48:56,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 22:48:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:48:58,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 3674 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-12 22:48:58,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:48:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:48:59,456 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 22:48:59,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74669238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:48:59,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 22:48:59,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-10-12 22:48:59,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830423466] [2024-10-12 22:48:59,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:48:59,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:48:59,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:48:59,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:48:59,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-12 22:48:59,462 INFO L87 Difference]: Start difference. First operand 1629 states and 2430 transitions. Second operand has 6 states, 6 states have (on average 136.0) internal successors, (816), 5 states have internal predecessors, (816), 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) [2024-10-12 22:49:00,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:49:00,683 INFO L93 Difference]: Finished difference Result 6627 states and 9882 transitions. [2024-10-12 22:49:00,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 22:49:00,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 136.0) internal successors, (816), 5 states have internal predecessors, (816), 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 816 [2024-10-12 22:49:00,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:49:00,703 INFO L225 Difference]: With dead ends: 6627 [2024-10-12 22:49:00,704 INFO L226 Difference]: Without dead ends: 2886 [2024-10-12 22:49:00,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 825 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-10-12 22:49:00,716 INFO L432 NwaCegarLoop]: 2032 mSDtfsCounter, 4974 mSDsluCounter, 7393 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4974 SdHoareTripleChecker+Valid, 9425 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:49:00,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4974 Valid, 9425 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 22:49:00,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2024-10-12 22:49:00,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 1755. [2024-10-12 22:49:00,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1755 states, 1754 states have (on average 1.4925883694412772) internal successors, (2618), 1754 states have internal predecessors, (2618), 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) [2024-10-12 22:49:00,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2618 transitions. [2024-10-12 22:49:00,779 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2618 transitions. Word has length 816 [2024-10-12 22:49:00,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:49:00,780 INFO L471 AbstractCegarLoop]: Abstraction has 1755 states and 2618 transitions. [2024-10-12 22:49:00,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.0) internal successors, (816), 5 states have internal predecessors, (816), 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) [2024-10-12 22:49:00,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2618 transitions. [2024-10-12 22:49:00,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2024-10-12 22:49:00,787 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:49:00,788 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:49:00,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 22:49:00,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-12 22:49:00,989 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:49:00,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:49:00,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1037730211, now seen corresponding path program 1 times [2024-10-12 22:49:00,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:49:00,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415831360] [2024-10-12 22:49:00,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:00,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:49:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 54 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:49:02,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:49:02,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415831360] [2024-10-12 22:49:02,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415831360] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 22:49:02,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46124687] [2024-10-12 22:49:02,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:02,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:49:02,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:49:02,412 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 22:49:02,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 22:49:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:03,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 3677 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-12 22:49:03,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:49:04,103 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-12 22:49:04,103 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 22:49:04,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46124687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:49:04,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 22:49:04,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-10-12 22:49:04,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286583523] [2024-10-12 22:49:04,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:49:04,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:49:04,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:49:04,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:49:04,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-12 22:49:04,110 INFO L87 Difference]: Start difference. First operand 1755 states and 2618 transitions. Second operand has 6 states, 6 states have (on average 130.33333333333334) internal successors, (782), 5 states have internal predecessors, (782), 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) [2024-10-12 22:49:05,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:49:05,036 INFO L93 Difference]: Finished difference Result 4498 states and 6708 transitions. [2024-10-12 22:49:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:49:05,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 130.33333333333334) internal successors, (782), 5 states have internal predecessors, (782), 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 817 [2024-10-12 22:49:05,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:49:05,047 INFO L225 Difference]: With dead ends: 4498 [2024-10-12 22:49:05,048 INFO L226 Difference]: Without dead ends: 2946 [2024-10-12 22:49:05,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 825 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-12 22:49:05,052 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 3647 mSDsluCounter, 5183 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3647 SdHoareTripleChecker+Valid, 6852 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 22:49:05,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3647 Valid, 6852 Invalid, 1600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 22:49:05,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2024-10-12 22:49:05,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 1763. [2024-10-12 22:49:05,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1763 states, 1762 states have (on average 1.4920544835414302) internal successors, (2629), 1762 states have internal predecessors, (2629), 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) [2024-10-12 22:49:05,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2629 transitions. [2024-10-12 22:49:05,089 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2629 transitions. Word has length 817 [2024-10-12 22:49:05,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:49:05,090 INFO L471 AbstractCegarLoop]: Abstraction has 1763 states and 2629 transitions. [2024-10-12 22:49:05,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.33333333333334) internal successors, (782), 5 states have internal predecessors, (782), 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) [2024-10-12 22:49:05,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2629 transitions. [2024-10-12 22:49:05,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2024-10-12 22:49:05,098 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:49:05,099 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:49:05,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 22:49:05,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:49:05,300 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:49:05,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:49:05,300 INFO L85 PathProgramCache]: Analyzing trace with hash -348623841, now seen corresponding path program 1 times [2024-10-12 22:49:05,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:49:05,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050634696] [2024-10-12 22:49:05,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:05,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:49:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:06,587 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 54 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:49:06,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:49:06,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050634696] [2024-10-12 22:49:06,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050634696] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 22:49:06,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352307431] [2024-10-12 22:49:06,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:06,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:49:06,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:49:06,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 22:49:06,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 22:49:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:08,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 3680 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-12 22:49:08,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:49:08,279 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-12 22:49:08,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 22:49:08,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352307431] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:49:08,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 22:49:08,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-10-12 22:49:08,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009910387] [2024-10-12 22:49:08,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:49:08,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:49:08,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:49:08,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:49:08,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-12 22:49:08,284 INFO L87 Difference]: Start difference. First operand 1763 states and 2629 transitions. Second operand has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 5 states have internal predecessors, (793), 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) [2024-10-12 22:49:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:49:09,170 INFO L93 Difference]: Finished difference Result 4510 states and 6725 transitions. [2024-10-12 22:49:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:49:09,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 5 states have internal predecessors, (793), 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 818 [2024-10-12 22:49:09,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:49:09,178 INFO L225 Difference]: With dead ends: 4510 [2024-10-12 22:49:09,178 INFO L226 Difference]: Without dead ends: 2958 [2024-10-12 22:49:09,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 826 GetRequests, 816 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-12 22:49:09,182 INFO L432 NwaCegarLoop]: 1670 mSDtfsCounter, 3659 mSDsluCounter, 5184 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3659 SdHoareTripleChecker+Valid, 6854 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 22:49:09,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3659 Valid, 6854 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 22:49:09,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2024-10-12 22:49:09,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1783. [2024-10-12 22:49:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1783 states, 1782 states have (on average 1.4915824915824916) internal successors, (2658), 1782 states have internal predecessors, (2658), 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) [2024-10-12 22:49:09,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2658 transitions. [2024-10-12 22:49:09,230 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2658 transitions. Word has length 818 [2024-10-12 22:49:09,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:49:09,230 INFO L471 AbstractCegarLoop]: Abstraction has 1783 states and 2658 transitions. [2024-10-12 22:49:09,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 5 states have internal predecessors, (793), 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) [2024-10-12 22:49:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2658 transitions. [2024-10-12 22:49:09,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2024-10-12 22:49:09,238 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:49:09,239 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:49:09,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 22:49:09,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-12 22:49:09,440 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:49:09,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:49:09,440 INFO L85 PathProgramCache]: Analyzing trace with hash -168091776, now seen corresponding path program 1 times [2024-10-12 22:49:09,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:49:09,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495617808] [2024-10-12 22:49:09,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:09,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:49:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:10,703 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 54 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:49:10,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:49:10,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495617808] [2024-10-12 22:49:10,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495617808] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 22:49:10,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33259728] [2024-10-12 22:49:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:10,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:49:10,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:49:10,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 22:49:10,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 22:49:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:12,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 3683 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-12 22:49:12,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:49:12,441 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 22:49:12,442 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 22:49:12,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33259728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:49:12,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 22:49:12,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-10-12 22:49:12,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423306325] [2024-10-12 22:49:12,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:49:12,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:49:12,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:49:12,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:49:12,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-12 22:49:12,445 INFO L87 Difference]: Start difference. First operand 1783 states and 2658 transitions. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 5 states have internal predecessors, (798), 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) [2024-10-12 22:49:13,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:49:13,726 INFO L93 Difference]: Finished difference Result 4514 states and 6730 transitions. [2024-10-12 22:49:13,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:49:13,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 5 states have internal predecessors, (798), 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 819 [2024-10-12 22:49:13,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:49:13,733 INFO L225 Difference]: With dead ends: 4514 [2024-10-12 22:49:13,733 INFO L226 Difference]: Without dead ends: 2962 [2024-10-12 22:49:13,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 817 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-12 22:49:13,736 INFO L432 NwaCegarLoop]: 1671 mSDtfsCounter, 1894 mSDsluCounter, 6625 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 8296 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 22:49:13,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1894 Valid, 8296 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 22:49:13,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2024-10-12 22:49:13,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1791. [2024-10-12 22:49:13,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1790 states have (on average 1.4910614525139665) internal successors, (2669), 1790 states have internal predecessors, (2669), 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) [2024-10-12 22:49:13,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 2669 transitions. [2024-10-12 22:49:13,772 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 2669 transitions. Word has length 819 [2024-10-12 22:49:13,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:49:13,773 INFO L471 AbstractCegarLoop]: Abstraction has 1791 states and 2669 transitions. [2024-10-12 22:49:13,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 5 states have internal predecessors, (798), 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) [2024-10-12 22:49:13,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 2669 transitions. [2024-10-12 22:49:13,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2024-10-12 22:49:13,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:49:13,781 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:49:13,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-12 22:49:13,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-12 22:49:13,982 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:49:13,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:49:13,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1696790287, now seen corresponding path program 1 times [2024-10-12 22:49:13,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:49:13,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572020309] [2024-10-12 22:49:13,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:13,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:49:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 54 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:49:15,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:49:15,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572020309] [2024-10-12 22:49:15,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572020309] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 22:49:15,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532859378] [2024-10-12 22:49:15,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:15,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:49:15,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:49:15,238 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 22:49:15,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 22:49:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:16,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 3686 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-12 22:49:16,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:49:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-12 22:49:16,941 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 22:49:16,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532859378] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:49:16,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 22:49:16,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-10-12 22:49:16,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801625290] [2024-10-12 22:49:16,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:49:16,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:49:16,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:49:16,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:49:16,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-12 22:49:16,946 INFO L87 Difference]: Start difference. First operand 1791 states and 2669 transitions. Second operand has 6 states, 6 states have (on average 131.83333333333334) internal successors, (791), 5 states have internal predecessors, (791), 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) [2024-10-12 22:49:17,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:49:17,781 INFO L93 Difference]: Finished difference Result 4520 states and 6736 transitions. [2024-10-12 22:49:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:49:17,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 131.83333333333334) internal successors, (791), 5 states have internal predecessors, (791), 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 820 [2024-10-12 22:49:17,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:49:17,787 INFO L225 Difference]: With dead ends: 4520 [2024-10-12 22:49:17,788 INFO L226 Difference]: Without dead ends: 2950 [2024-10-12 22:49:17,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 818 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-12 22:49:17,791 INFO L432 NwaCegarLoop]: 1672 mSDtfsCounter, 3643 mSDsluCounter, 5186 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3643 SdHoareTripleChecker+Valid, 6858 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 22:49:17,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3643 Valid, 6858 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 22:49:17,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2024-10-12 22:49:17,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1791. [2024-10-12 22:49:17,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1790 states have (on average 1.4905027932960895) internal successors, (2668), 1790 states have internal predecessors, (2668), 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) [2024-10-12 22:49:17,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 2668 transitions. [2024-10-12 22:49:17,822 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 2668 transitions. Word has length 820 [2024-10-12 22:49:17,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:49:17,822 INFO L471 AbstractCegarLoop]: Abstraction has 1791 states and 2668 transitions. [2024-10-12 22:49:17,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.83333333333334) internal successors, (791), 5 states have internal predecessors, (791), 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) [2024-10-12 22:49:17,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 2668 transitions. [2024-10-12 22:49:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 822 [2024-10-12 22:49:17,830 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:49:17,830 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:49:17,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-12 22:49:18,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:49:18,031 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:49:18,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:49:18,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1181224281, now seen corresponding path program 1 times [2024-10-12 22:49:18,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:49:18,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119151337] [2024-10-12 22:49:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:18,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:49:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 54 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:49:19,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:49:19,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119151337] [2024-10-12 22:49:19,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119151337] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 22:49:19,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743401050] [2024-10-12 22:49:19,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:19,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:49:19,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:49:19,180 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 22:49:19,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-12 22:49:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:20,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 3689 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-12 22:49:20,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:49:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 22:49:21,179 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 22:49:21,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743401050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:49:21,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 22:49:21,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-10-12 22:49:21,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167103307] [2024-10-12 22:49:21,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:49:21,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:49:21,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:49:21,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:49:21,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-12 22:49:21,183 INFO L87 Difference]: Start difference. First operand 1791 states and 2668 transitions. Second operand has 6 states, 6 states have (on average 134.83333333333334) internal successors, (809), 5 states have internal predecessors, (809), 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) [2024-10-12 22:49:22,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:49:22,592 INFO L93 Difference]: Finished difference Result 4526 states and 6746 transitions. [2024-10-12 22:49:22,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:49:22,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 134.83333333333334) internal successors, (809), 5 states have internal predecessors, (809), 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 821 [2024-10-12 22:49:22,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:49:22,599 INFO L225 Difference]: With dead ends: 4526 [2024-10-12 22:49:22,599 INFO L226 Difference]: Without dead ends: 2974 [2024-10-12 22:49:22,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 829 GetRequests, 819 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-12 22:49:22,603 INFO L432 NwaCegarLoop]: 1673 mSDtfsCounter, 1898 mSDsluCounter, 6627 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 8300 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 22:49:22,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1898 Valid, 8300 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 22:49:22,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2024-10-12 22:49:22,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 1813. [2024-10-12 22:49:22,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1812 states have (on average 1.489514348785872) internal successors, (2699), 1812 states have internal predecessors, (2699), 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) [2024-10-12 22:49:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2699 transitions. [2024-10-12 22:49:22,641 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2699 transitions. Word has length 821 [2024-10-12 22:49:22,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:49:22,641 INFO L471 AbstractCegarLoop]: Abstraction has 1813 states and 2699 transitions. [2024-10-12 22:49:22,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.83333333333334) internal successors, (809), 5 states have internal predecessors, (809), 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) [2024-10-12 22:49:22,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2699 transitions. [2024-10-12 22:49:22,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2024-10-12 22:49:22,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:49:22,655 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:49:22,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-12 22:49:22,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:49:22,856 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:49:22,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:49:22,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1628413895, now seen corresponding path program 1 times [2024-10-12 22:49:22,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:49:22,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875210185] [2024-10-12 22:49:22,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:22,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:49:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 54 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:49:24,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:49:24,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875210185] [2024-10-12 22:49:24,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875210185] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 22:49:24,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030101489] [2024-10-12 22:49:24,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:24,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:49:24,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:49:24,137 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 22:49:24,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-12 22:49:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:25,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 3692 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-12 22:49:25,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:49:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 22:49:26,040 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 22:49:26,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030101489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:49:26,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 22:49:26,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-10-12 22:49:26,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648721774] [2024-10-12 22:49:26,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:49:26,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:49:26,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:49:26,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:49:26,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-12 22:49:26,043 INFO L87 Difference]: Start difference. First operand 1813 states and 2699 transitions. Second operand has 6 states, 6 states have (on average 134.33333333333334) internal successors, (806), 5 states have internal predecessors, (806), 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) [2024-10-12 22:49:27,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:49:27,277 INFO L93 Difference]: Finished difference Result 4530 states and 6748 transitions. [2024-10-12 22:49:27,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:49:27,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 134.33333333333334) internal successors, (806), 5 states have internal predecessors, (806), 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 822 [2024-10-12 22:49:27,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:49:27,282 INFO L225 Difference]: With dead ends: 4530 [2024-10-12 22:49:27,282 INFO L226 Difference]: Without dead ends: 2966 [2024-10-12 22:49:27,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 830 GetRequests, 820 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-12 22:49:27,286 INFO L432 NwaCegarLoop]: 1674 mSDtfsCounter, 1891 mSDsluCounter, 6628 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 8302 SdHoareTripleChecker+Invalid, 2118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 22:49:27,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 8302 Invalid, 2118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2092 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 22:49:27,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2024-10-12 22:49:27,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1813. [2024-10-12 22:49:27,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1812 states have (on average 1.488962472406181) internal successors, (2698), 1812 states have internal predecessors, (2698), 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) [2024-10-12 22:49:27,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2698 transitions. [2024-10-12 22:49:27,319 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2698 transitions. Word has length 822 [2024-10-12 22:49:27,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:49:27,319 INFO L471 AbstractCegarLoop]: Abstraction has 1813 states and 2698 transitions. [2024-10-12 22:49:27,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.33333333333334) internal successors, (806), 5 states have internal predecessors, (806), 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) [2024-10-12 22:49:27,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2698 transitions. [2024-10-12 22:49:27,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2024-10-12 22:49:27,327 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:49:27,327 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:49:27,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-12 22:49:27,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-12 22:49:27,528 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:49:27,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:49:27,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1063856974, now seen corresponding path program 1 times [2024-10-12 22:49:27,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:49:27,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191876273] [2024-10-12 22:49:27,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:27,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:49:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:49:28,693 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 54 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:49:28,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:49:28,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191876273] [2024-10-12 22:49:28,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191876273] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 22:49:28,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377361632] [2024-10-12 22:49:28,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:49:28,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 22:49:28,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:49:28,696 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 22:49:28,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process