./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8cf9a91c8f1111f4616406dfb4a7fdeef392d21e591ff8d6357140f3015668db --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:32:28,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:32:28,955 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:32:28,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:32:28,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:32:28,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:32:28,985 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:32:28,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:32:28,986 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:32:28,987 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:32:28,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:32:28,988 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:32:28,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:32:28,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:32:28,990 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:32:28,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:32:28,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:32:28,991 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:32:28,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:32:28,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:32:28,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:32:28,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:32:28,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:32:28,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:32:28,993 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:32:28,993 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:32:28,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:32:28,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:32:28,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:32:28,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:32:28,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:32:28,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:32:28,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:32:28,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:32:28,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:32:28,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:32:28,995 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:32:28,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:32:28,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:32:28,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:32:28,995 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:32:28,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:32:28,996 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cf9a91c8f1111f4616406dfb4a7fdeef392d21e591ff8d6357140f3015668db [2024-10-14 03:32:29,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:32:29,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:32:29,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:32:29,189 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:32:29,189 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:32:29,190 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c [2024-10-14 03:32:30,387 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:32:30,528 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:32:30,528 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c [2024-10-14 03:32:30,536 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca6e5aa4/fc214c48d0764ca29d50058bad67ab3e/FLAG269e00771 [2024-10-14 03:32:30,933 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca6e5aa4/fc214c48d0764ca29d50058bad67ab3e [2024-10-14 03:32:30,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:32:30,936 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:32:30,937 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:32:30,937 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:32:30,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:32:30,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:32:30" (1/1) ... [2024-10-14 03:32:30,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e38a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:30, skipping insertion in model container [2024-10-14 03:32:30,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:32:30" (1/1) ... [2024-10-14 03:32:30,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:32:31,138 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/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c[8379,8392] [2024-10-14 03:32:31,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:32:31,152 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:32:31,183 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/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c[8379,8392] [2024-10-14 03:32:31,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:32:31,200 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:32:31,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31 WrapperNode [2024-10-14 03:32:31,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:32:31,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:32:31,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:32:31,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:32:31,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (1/1) ... [2024-10-14 03:32:31,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (1/1) ... [2024-10-14 03:32:31,231 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 276 [2024-10-14 03:32:31,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:32:31,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:32:31,232 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:32:31,232 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:32:31,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (1/1) ... [2024-10-14 03:32:31,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (1/1) ... [2024-10-14 03:32:31,243 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (1/1) ... [2024-10-14 03:32:31,253 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]. [2024-10-14 03:32:31,253 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (1/1) ... [2024-10-14 03:32:31,253 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (1/1) ... [2024-10-14 03:32:31,257 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (1/1) ... [2024-10-14 03:32:31,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (1/1) ... [2024-10-14 03:32:31,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (1/1) ... [2024-10-14 03:32:31,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (1/1) ... [2024-10-14 03:32:31,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:32:31,265 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:32:31,265 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:32:31,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:32:31,266 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (1/1) ... [2024-10-14 03:32:31,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:32:31,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:32:31,303 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) [2024-10-14 03:32:31,305 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 [2024-10-14 03:32:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:32:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:32:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:32:31,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:32:31,412 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:32:31,414 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:32:31,701 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-10-14 03:32:31,702 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:32:31,736 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:32:31,736 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 03:32:31,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:32:31 BoogieIcfgContainer [2024-10-14 03:32:31,737 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:32:31,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:32:31,740 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:32:31,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:32:31,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:32:30" (1/3) ... [2024-10-14 03:32:31,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6941fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:32:31, skipping insertion in model container [2024-10-14 03:32:31,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:32:31" (2/3) ... [2024-10-14 03:32:31,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6941fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:32:31, skipping insertion in model container [2024-10-14 03:32:31,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:32:31" (3/3) ... [2024-10-14 03:32:31,745 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c [2024-10-14 03:32:31,758 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:32:31,758 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:32:31,799 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:32:31,804 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;@4ad00f7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:32:31,804 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:32:31,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 62 states have (on average 1.7903225806451613) internal successors, (111), 63 states have internal predecessors, (111), 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) [2024-10-14 03:32:31,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-14 03:32:31,812 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:31,815 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:32:31,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:31,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:31,821 INFO L85 PathProgramCache]: Analyzing trace with hash -20322442, now seen corresponding path program 1 times [2024-10-14 03:32:31,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:31,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138489264] [2024-10-14 03:32:31,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:31,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:32,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:32,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138489264] [2024-10-14 03:32:32,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138489264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:32,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:32,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 03:32:32,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855281005] [2024-10-14 03:32:32,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:32,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 03:32:32,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:32,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 03:32:32,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:32:32,064 INFO L87 Difference]: Start difference. First operand has 64 states, 62 states have (on average 1.7903225806451613) internal successors, (111), 63 states have internal predecessors, (111), 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 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2024-10-14 03:32:32,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:32,095 INFO L93 Difference]: Finished difference Result 100 states and 171 transitions. [2024-10-14 03:32:32,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 03:32:32,099 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2024-10-14 03:32:32,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:32,106 INFO L225 Difference]: With dead ends: 100 [2024-10-14 03:32:32,106 INFO L226 Difference]: Without dead ends: 62 [2024-10-14 03:32:32,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:32:32,112 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:32,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-14 03:32:32,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-10-14 03:32:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.7377049180327868) internal successors, (106), 61 states have internal predecessors, (106), 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) [2024-10-14 03:32:32,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 106 transitions. [2024-10-14 03:32:32,149 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 106 transitions. Word has length 18 [2024-10-14 03:32:32,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:32,149 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 106 transitions. [2024-10-14 03:32:32,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2024-10-14 03:32:32,150 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 106 transitions. [2024-10-14 03:32:32,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-14 03:32:32,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:32,150 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:32:32,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:32:32,151 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:32,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:32,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1300186120, now seen corresponding path program 1 times [2024-10-14 03:32:32,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:32,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164716497] [2024-10-14 03:32:32,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:32,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:32,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:32,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:32,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164716497] [2024-10-14 03:32:32,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164716497] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:32,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:32,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:32:32,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634066275] [2024-10-14 03:32:32,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:32,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:32:32,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:32,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:32:32,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:32:32,286 INFO L87 Difference]: Start difference. First operand 62 states and 106 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-10-14 03:32:32,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:32,340 INFO L93 Difference]: Finished difference Result 100 states and 165 transitions. [2024-10-14 03:32:32,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:32:32,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2024-10-14 03:32:32,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:32,341 INFO L225 Difference]: With dead ends: 100 [2024-10-14 03:32:32,341 INFO L226 Difference]: Without dead ends: 62 [2024-10-14 03:32:32,342 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 [2024-10-14 03:32:32,343 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:32,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 283 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:32,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-14 03:32:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-10-14 03:32:32,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.360655737704918) internal successors, (83), 61 states have internal predecessors, (83), 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) [2024-10-14 03:32:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2024-10-14 03:32:32,349 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 83 transitions. Word has length 18 [2024-10-14 03:32:32,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:32,350 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 83 transitions. [2024-10-14 03:32:32,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-10-14 03:32:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2024-10-14 03:32:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-14 03:32:32,352 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:32,352 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:32:32,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:32:32,353 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:32,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1316975187, now seen corresponding path program 1 times [2024-10-14 03:32:32,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:32,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459070047] [2024-10-14 03:32:32,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:32,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:32,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:32,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:32,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459070047] [2024-10-14 03:32:32,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459070047] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:32,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:32,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:32:32,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645051756] [2024-10-14 03:32:32,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:32,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:32:32,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:32,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:32:32,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:32:32,548 INFO L87 Difference]: Start difference. First operand 62 states and 83 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:32,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:32,730 INFO L93 Difference]: Finished difference Result 342 states and 531 transitions. [2024-10-14 03:32:32,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:32:32,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-10-14 03:32:32,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:32,734 INFO L225 Difference]: With dead ends: 342 [2024-10-14 03:32:32,734 INFO L226 Difference]: Without dead ends: 307 [2024-10-14 03:32:32,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:32:32,736 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 494 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:32,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 716 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:32:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-10-14 03:32:32,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 95. [2024-10-14 03:32:32,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.446808510638298) internal successors, (136), 94 states have internal predecessors, (136), 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) [2024-10-14 03:32:32,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 136 transitions. [2024-10-14 03:32:32,759 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 136 transitions. Word has length 40 [2024-10-14 03:32:32,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:32,760 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 136 transitions. [2024-10-14 03:32:32,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:32,760 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 136 transitions. [2024-10-14 03:32:32,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-14 03:32:32,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:32,761 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:32:32,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:32:32,761 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:32,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:32,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2133064515, now seen corresponding path program 1 times [2024-10-14 03:32:32,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:32,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686566055] [2024-10-14 03:32:32,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:32,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:32,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:32,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:32,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686566055] [2024-10-14 03:32:32,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686566055] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:32,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:32,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:32:32,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553133877] [2024-10-14 03:32:32,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:32,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:32:32,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:32,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:32:32,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:32,848 INFO L87 Difference]: Start difference. First operand 95 states and 136 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:32,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:32,868 INFO L93 Difference]: Finished difference Result 220 states and 335 transitions. [2024-10-14 03:32:32,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:32:32,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-10-14 03:32:32,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:32,871 INFO L225 Difference]: With dead ends: 220 [2024-10-14 03:32:32,872 INFO L226 Difference]: Without dead ends: 152 [2024-10-14 03:32:32,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:32,874 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 34 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:32,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 128 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:32,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-14 03:32:32,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2024-10-14 03:32:32,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 1.4899328859060403) internal successors, (222), 149 states have internal predecessors, (222), 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) [2024-10-14 03:32:32,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 222 transitions. [2024-10-14 03:32:32,889 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 222 transitions. Word has length 42 [2024-10-14 03:32:32,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:32,889 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 222 transitions. [2024-10-14 03:32:32,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:32,890 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 222 transitions. [2024-10-14 03:32:32,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-14 03:32:32,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:32,892 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:32:32,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:32:32,893 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:32,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:32,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2135209467, now seen corresponding path program 1 times [2024-10-14 03:32:32,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:32,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202456818] [2024-10-14 03:32:32,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:32,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:33,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:33,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202456818] [2024-10-14 03:32:33,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202456818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:33,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:33,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:32:33,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691600717] [2024-10-14 03:32:33,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:33,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:32:33,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:33,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:32:33,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:32:33,115 INFO L87 Difference]: Start difference. First operand 150 states and 222 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:33,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:33,224 INFO L93 Difference]: Finished difference Result 275 states and 418 transitions. [2024-10-14 03:32:33,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:32:33,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-10-14 03:32:33,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:33,225 INFO L225 Difference]: With dead ends: 275 [2024-10-14 03:32:33,226 INFO L226 Difference]: Without dead ends: 152 [2024-10-14 03:32:33,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:32:33,227 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 50 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:33,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 280 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:33,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-14 03:32:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2024-10-14 03:32:33,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 1.476510067114094) internal successors, (220), 149 states have internal predecessors, (220), 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) [2024-10-14 03:32:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 220 transitions. [2024-10-14 03:32:33,237 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 220 transitions. Word has length 42 [2024-10-14 03:32:33,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:33,237 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 220 transitions. [2024-10-14 03:32:33,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:33,237 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 220 transitions. [2024-10-14 03:32:33,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 03:32:33,238 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:33,238 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:32:33,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:32:33,238 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:33,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:33,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1752940221, now seen corresponding path program 1 times [2024-10-14 03:32:33,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:33,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440777824] [2024-10-14 03:32:33,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:33,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:33,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:33,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:33,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440777824] [2024-10-14 03:32:33,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440777824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:33,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:33,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:32:33,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56788119] [2024-10-14 03:32:33,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:33,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:32:33,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:33,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:32:33,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:32:33,346 INFO L87 Difference]: Start difference. First operand 150 states and 220 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:33,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:33,369 INFO L93 Difference]: Finished difference Result 156 states and 227 transitions. [2024-10-14 03:32:33,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:32:33,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-10-14 03:32:33,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:33,371 INFO L225 Difference]: With dead ends: 156 [2024-10-14 03:32:33,371 INFO L226 Difference]: Without dead ends: 154 [2024-10-14 03:32:33,371 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 [2024-10-14 03:32:33,372 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:33,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 229 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:33,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-10-14 03:32:33,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-10-14 03:32:33,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.457516339869281) internal successors, (223), 153 states have internal predecessors, (223), 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) [2024-10-14 03:32:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 223 transitions. [2024-10-14 03:32:33,377 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 223 transitions. Word has length 43 [2024-10-14 03:32:33,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:33,378 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 223 transitions. [2024-10-14 03:32:33,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:33,378 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 223 transitions. [2024-10-14 03:32:33,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 03:32:33,379 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:33,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:32:33,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:32:33,379 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:33,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:33,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1574505819, now seen corresponding path program 1 times [2024-10-14 03:32:33,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:33,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748617185] [2024-10-14 03:32:33,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:33,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:33,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:33,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:33,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748617185] [2024-10-14 03:32:33,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748617185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:33,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:33,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:32:33,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442551770] [2024-10-14 03:32:33,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:33,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:32:33,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:33,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:32:33,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:33,428 INFO L87 Difference]: Start difference. First operand 154 states and 223 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:33,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:33,450 INFO L93 Difference]: Finished difference Result 292 states and 436 transitions. [2024-10-14 03:32:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:32:33,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-10-14 03:32:33,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:33,452 INFO L225 Difference]: With dead ends: 292 [2024-10-14 03:32:33,452 INFO L226 Difference]: Without dead ends: 220 [2024-10-14 03:32:33,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:33,453 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 46 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:33,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 176 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:33,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-14 03:32:33,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2024-10-14 03:32:33,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 1.4746543778801844) internal successors, (320), 217 states have internal predecessors, (320), 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) [2024-10-14 03:32:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 320 transitions. [2024-10-14 03:32:33,470 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 320 transitions. Word has length 44 [2024-10-14 03:32:33,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:33,470 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 320 transitions. [2024-10-14 03:32:33,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:33,470 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 320 transitions. [2024-10-14 03:32:33,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 03:32:33,472 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:33,472 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:32:33,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:32:33,472 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:33,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:33,472 INFO L85 PathProgramCache]: Analyzing trace with hash 988793691, now seen corresponding path program 1 times [2024-10-14 03:32:33,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:33,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071331104] [2024-10-14 03:32:33,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:33,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:33,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:33,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:33,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071331104] [2024-10-14 03:32:33,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071331104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:33,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:33,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:32:33,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114660379] [2024-10-14 03:32:33,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:33,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:32:33,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:33,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:32:33,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:33,512 INFO L87 Difference]: Start difference. First operand 218 states and 320 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:33,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:33,531 INFO L93 Difference]: Finished difference Result 572 states and 860 transitions. [2024-10-14 03:32:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:32:33,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-10-14 03:32:33,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:33,533 INFO L225 Difference]: With dead ends: 572 [2024-10-14 03:32:33,533 INFO L226 Difference]: Without dead ends: 383 [2024-10-14 03:32:33,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:33,534 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 42 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:33,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 176 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:33,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-10-14 03:32:33,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 381. [2024-10-14 03:32:33,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.4789473684210526) internal successors, (562), 380 states have internal predecessors, (562), 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) [2024-10-14 03:32:33,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 562 transitions. [2024-10-14 03:32:33,545 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 562 transitions. Word has length 44 [2024-10-14 03:32:33,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:33,546 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 562 transitions. [2024-10-14 03:32:33,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:33,546 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 562 transitions. [2024-10-14 03:32:33,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 03:32:33,546 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:33,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:32:33,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:32:33,547 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:33,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:33,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1877527131, now seen corresponding path program 1 times [2024-10-14 03:32:33,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:33,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161460772] [2024-10-14 03:32:33,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:33,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:33,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:33,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161460772] [2024-10-14 03:32:33,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161460772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:33,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:33,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:32:33,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374596399] [2024-10-14 03:32:33,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:33,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:32:33,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:33,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:32:33,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:33,591 INFO L87 Difference]: Start difference. First operand 381 states and 562 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:33,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:33,632 INFO L93 Difference]: Finished difference Result 1037 states and 1544 transitions. [2024-10-14 03:32:33,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:32:33,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-10-14 03:32:33,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:33,635 INFO L225 Difference]: With dead ends: 1037 [2024-10-14 03:32:33,635 INFO L226 Difference]: Without dead ends: 685 [2024-10-14 03:32:33,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:33,636 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 40 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:33,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 178 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:33,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2024-10-14 03:32:33,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 683. [2024-10-14 03:32:33,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 682 states have (on average 1.4633431085043989) internal successors, (998), 682 states have internal predecessors, (998), 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) [2024-10-14 03:32:33,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 998 transitions. [2024-10-14 03:32:33,658 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 998 transitions. Word has length 44 [2024-10-14 03:32:33,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:33,659 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 998 transitions. [2024-10-14 03:32:33,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:33,659 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 998 transitions. [2024-10-14 03:32:33,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 03:32:33,660 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:33,660 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:32:33,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:32:33,661 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:33,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:33,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1614449755, now seen corresponding path program 1 times [2024-10-14 03:32:33,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:33,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428359379] [2024-10-14 03:32:33,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:33,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:33,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:33,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:33,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428359379] [2024-10-14 03:32:33,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428359379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:33,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:33,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:32:33,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841327766] [2024-10-14 03:32:33,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:33,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:32:33,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:33,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:32:33,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:33,714 INFO L87 Difference]: Start difference. First operand 683 states and 998 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:33,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:33,747 INFO L93 Difference]: Finished difference Result 1895 states and 2768 transitions. [2024-10-14 03:32:33,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:32:33,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-10-14 03:32:33,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:33,752 INFO L225 Difference]: With dead ends: 1895 [2024-10-14 03:32:33,752 INFO L226 Difference]: Without dead ends: 1241 [2024-10-14 03:32:33,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:33,753 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 44 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:33,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 182 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:33,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2024-10-14 03:32:33,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1239. [2024-10-14 03:32:33,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 1238 states have (on average 1.432956381260097) internal successors, (1774), 1238 states have internal predecessors, (1774), 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) [2024-10-14 03:32:33,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1774 transitions. [2024-10-14 03:32:33,793 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1774 transitions. Word has length 44 [2024-10-14 03:32:33,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:33,793 INFO L471 AbstractCegarLoop]: Abstraction has 1239 states and 1774 transitions. [2024-10-14 03:32:33,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:32:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1774 transitions. [2024-10-14 03:32:33,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-14 03:32:33,795 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:33,795 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:33,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:32:33,796 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:33,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:33,797 INFO L85 PathProgramCache]: Analyzing trace with hash -712030863, now seen corresponding path program 1 times [2024-10-14 03:32:33,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:33,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713173214] [2024-10-14 03:32:33,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:33,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:33,909 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:32:33,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:33,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713173214] [2024-10-14 03:32:33,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713173214] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:33,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:33,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:32:33,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766722986] [2024-10-14 03:32:33,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:33,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:32:33,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:33,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:32:33,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:32:33,911 INFO L87 Difference]: Start difference. First operand 1239 states and 1774 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2024-10-14 03:32:34,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:34,075 INFO L93 Difference]: Finished difference Result 6001 states and 8635 transitions. [2024-10-14 03:32:34,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:32:34,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 60 [2024-10-14 03:32:34,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:34,088 INFO L225 Difference]: With dead ends: 6001 [2024-10-14 03:32:34,088 INFO L226 Difference]: Without dead ends: 5135 [2024-10-14 03:32:34,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:32:34,090 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 323 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:34,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 407 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:34,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5135 states. [2024-10-14 03:32:34,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5135 to 2279. [2024-10-14 03:32:34,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2278 states have (on average 1.4284460052677788) internal successors, (3254), 2278 states have internal predecessors, (3254), 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) [2024-10-14 03:32:34,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 3254 transitions. [2024-10-14 03:32:34,160 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 3254 transitions. Word has length 60 [2024-10-14 03:32:34,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:34,161 INFO L471 AbstractCegarLoop]: Abstraction has 2279 states and 3254 transitions. [2024-10-14 03:32:34,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2024-10-14 03:32:34,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 3254 transitions. [2024-10-14 03:32:34,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-14 03:32:34,162 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:34,162 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:34,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:32:34,162 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:34,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:34,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1297742991, now seen corresponding path program 1 times [2024-10-14 03:32:34,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:34,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092763521] [2024-10-14 03:32:34,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:34,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:34,263 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 03:32:34,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:34,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092763521] [2024-10-14 03:32:34,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092763521] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:34,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:34,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:32:34,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530265424] [2024-10-14 03:32:34,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:34,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:32:34,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:34,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:32:34,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:32:34,267 INFO L87 Difference]: Start difference. First operand 2279 states and 3254 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2024-10-14 03:32:34,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:34,490 INFO L93 Difference]: Finished difference Result 7209 states and 10363 transitions. [2024-10-14 03:32:34,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:32:34,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 60 [2024-10-14 03:32:34,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:34,508 INFO L225 Difference]: With dead ends: 7209 [2024-10-14 03:32:34,510 INFO L226 Difference]: Without dead ends: 5999 [2024-10-14 03:32:34,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:32:34,516 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 356 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:34,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 440 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:32:34,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2024-10-14 03:32:34,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 3919. [2024-10-14 03:32:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3919 states, 3918 states have (on average 1.4247064828994385) internal successors, (5582), 3918 states have internal predecessors, (5582), 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) [2024-10-14 03:32:34,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3919 states to 3919 states and 5582 transitions. [2024-10-14 03:32:34,640 INFO L78 Accepts]: Start accepts. Automaton has 3919 states and 5582 transitions. Word has length 60 [2024-10-14 03:32:34,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:34,641 INFO L471 AbstractCegarLoop]: Abstraction has 3919 states and 5582 transitions. [2024-10-14 03:32:34,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2024-10-14 03:32:34,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3919 states and 5582 transitions. [2024-10-14 03:32:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-14 03:32:34,642 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:34,642 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:34,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:32:34,643 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:34,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:34,643 INFO L85 PathProgramCache]: Analyzing trace with hash -409009551, now seen corresponding path program 1 times [2024-10-14 03:32:34,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:34,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728850084] [2024-10-14 03:32:34,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:34,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:34,747 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 03:32:34,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:34,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728850084] [2024-10-14 03:32:34,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728850084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:34,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:34,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:32:34,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011832048] [2024-10-14 03:32:34,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:34,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:32:34,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:34,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:32:34,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:32:34,750 INFO L87 Difference]: Start difference. First operand 3919 states and 5582 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2024-10-14 03:32:34,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:34,938 INFO L93 Difference]: Finished difference Result 8417 states and 12083 transitions. [2024-10-14 03:32:34,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:32:34,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 60 [2024-10-14 03:32:34,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:34,956 INFO L225 Difference]: With dead ends: 8417 [2024-10-14 03:32:34,957 INFO L226 Difference]: Without dead ends: 7207 [2024-10-14 03:32:34,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:32:34,961 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 355 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:34,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 431 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:32:34,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7207 states. [2024-10-14 03:32:35,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7207 to 5127. [2024-10-14 03:32:35,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 1.424502536090519) internal successors, (7302), 5126 states have internal predecessors, (7302), 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) [2024-10-14 03:32:35,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 7302 transitions. [2024-10-14 03:32:35,147 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 7302 transitions. Word has length 60 [2024-10-14 03:32:35,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:35,148 INFO L471 AbstractCegarLoop]: Abstraction has 5127 states and 7302 transitions. [2024-10-14 03:32:35,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2024-10-14 03:32:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 7302 transitions. [2024-10-14 03:32:35,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-14 03:32:35,149 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:35,149 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:35,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:32:35,150 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:35,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:35,150 INFO L85 PathProgramCache]: Analyzing trace with hash -672086927, now seen corresponding path program 1 times [2024-10-14 03:32:35,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:35,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457556679] [2024-10-14 03:32:35,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:35,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 03:32:35,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:35,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457556679] [2024-10-14 03:32:35,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457556679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:35,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:35,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:32:35,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421036560] [2024-10-14 03:32:35,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:35,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:32:35,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:35,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:32:35,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:32:35,246 INFO L87 Difference]: Start difference. First operand 5127 states and 7302 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-10-14 03:32:35,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:35,490 INFO L93 Difference]: Finished difference Result 9625 states and 13803 transitions. [2024-10-14 03:32:35,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:32:35,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 60 [2024-10-14 03:32:35,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:35,512 INFO L225 Difference]: With dead ends: 9625 [2024-10-14 03:32:35,512 INFO L226 Difference]: Without dead ends: 8415 [2024-10-14 03:32:35,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:32:35,515 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 323 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:35,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 473 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:32:35,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8415 states. [2024-10-14 03:32:35,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8415 to 6335. [2024-10-14 03:32:35,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6335 states, 6334 states have (on average 1.4243763814335333) internal successors, (9022), 6334 states have internal predecessors, (9022), 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) [2024-10-14 03:32:35,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6335 states to 6335 states and 9022 transitions. [2024-10-14 03:32:35,701 INFO L78 Accepts]: Start accepts. Automaton has 6335 states and 9022 transitions. Word has length 60 [2024-10-14 03:32:35,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:35,701 INFO L471 AbstractCegarLoop]: Abstraction has 6335 states and 9022 transitions. [2024-10-14 03:32:35,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-10-14 03:32:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 6335 states and 9022 transitions. [2024-10-14 03:32:35,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 03:32:35,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:35,703 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:35,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:32:35,705 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:35,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:35,705 INFO L85 PathProgramCache]: Analyzing trace with hash 429122550, now seen corresponding path program 1 times [2024-10-14 03:32:35,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:35,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174306358] [2024-10-14 03:32:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:35,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:35,817 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:35,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:35,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174306358] [2024-10-14 03:32:35,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174306358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:35,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:35,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:32:35,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495474711] [2024-10-14 03:32:35,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:35,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:32:35,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:35,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:32:35,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:35,819 INFO L87 Difference]: Start difference. First operand 6335 states and 9022 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-10-14 03:32:35,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:35,980 INFO L93 Difference]: Finished difference Result 12643 states and 18016 transitions. [2024-10-14 03:32:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:32:35,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2024-10-14 03:32:35,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:35,994 INFO L225 Difference]: With dead ends: 12643 [2024-10-14 03:32:35,997 INFO L226 Difference]: Without dead ends: 6337 [2024-10-14 03:32:36,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:36,006 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 37 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:36,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 176 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:36,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6337 states. [2024-10-14 03:32:36,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6337 to 6335. [2024-10-14 03:32:36,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6335 states, 6334 states have (on average 1.4047994947900222) internal successors, (8898), 6334 states have internal predecessors, (8898), 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) [2024-10-14 03:32:36,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6335 states to 6335 states and 8898 transitions. [2024-10-14 03:32:36,186 INFO L78 Accepts]: Start accepts. Automaton has 6335 states and 8898 transitions. Word has length 61 [2024-10-14 03:32:36,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:36,186 INFO L471 AbstractCegarLoop]: Abstraction has 6335 states and 8898 transitions. [2024-10-14 03:32:36,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-10-14 03:32:36,187 INFO L276 IsEmpty]: Start isEmpty. Operand 6335 states and 8898 transitions. [2024-10-14 03:32:36,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 03:32:36,187 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:36,187 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:36,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:32:36,188 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:36,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:36,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1906964633, now seen corresponding path program 1 times [2024-10-14 03:32:36,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:36,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515881408] [2024-10-14 03:32:36,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:36,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:36,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:36,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515881408] [2024-10-14 03:32:36,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515881408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:36,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:36,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:32:36,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813789921] [2024-10-14 03:32:36,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:36,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:32:36,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:36,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:32:36,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:36,244 INFO L87 Difference]: Start difference. First operand 6335 states and 8898 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-10-14 03:32:36,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:36,303 INFO L93 Difference]: Finished difference Result 8731 states and 12305 transitions. [2024-10-14 03:32:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:32:36,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2024-10-14 03:32:36,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:36,307 INFO L225 Difference]: With dead ends: 8731 [2024-10-14 03:32:36,307 INFO L226 Difference]: Without dead ends: 2425 [2024-10-14 03:32:36,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:36,312 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 31 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:36,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 173 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:36,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2024-10-14 03:32:36,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2418. [2024-10-14 03:32:36,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 2417 states have (on average 1.4004964832436906) internal successors, (3385), 2417 states have internal predecessors, (3385), 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) [2024-10-14 03:32:36,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3385 transitions. [2024-10-14 03:32:36,362 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3385 transitions. Word has length 62 [2024-10-14 03:32:36,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:36,362 INFO L471 AbstractCegarLoop]: Abstraction has 2418 states and 3385 transitions. [2024-10-14 03:32:36,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-10-14 03:32:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3385 transitions. [2024-10-14 03:32:36,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 03:32:36,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:36,363 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:36,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:32:36,364 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:36,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:36,364 INFO L85 PathProgramCache]: Analyzing trace with hash 438272804, now seen corresponding path program 1 times [2024-10-14 03:32:36,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:36,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679427864] [2024-10-14 03:32:36,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:36,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:36,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:36,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679427864] [2024-10-14 03:32:36,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679427864] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:36,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:36,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:32:36,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960897070] [2024-10-14 03:32:36,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:36,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:32:36,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:36,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:32:36,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:36,433 INFO L87 Difference]: Start difference. First operand 2418 states and 3385 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-10-14 03:32:36,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:36,464 INFO L93 Difference]: Finished difference Result 3610 states and 5059 transitions. [2024-10-14 03:32:36,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:32:36,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2024-10-14 03:32:36,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:36,467 INFO L225 Difference]: With dead ends: 3610 [2024-10-14 03:32:36,467 INFO L226 Difference]: Without dead ends: 1232 [2024-10-14 03:32:36,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:36,469 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 33 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:36,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 152 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:36,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-10-14 03:32:36,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1230. [2024-10-14 03:32:36,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1229 states have (on average 1.3759153783563873) internal successors, (1691), 1229 states have internal predecessors, (1691), 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) [2024-10-14 03:32:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1691 transitions. [2024-10-14 03:32:36,517 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1691 transitions. Word has length 63 [2024-10-14 03:32:36,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:36,517 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 1691 transitions. [2024-10-14 03:32:36,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-10-14 03:32:36,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1691 transitions. [2024-10-14 03:32:36,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 03:32:36,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:36,518 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:36,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:32:36,518 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:36,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:36,519 INFO L85 PathProgramCache]: Analyzing trace with hash 888337362, now seen corresponding path program 1 times [2024-10-14 03:32:36,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:36,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060504278] [2024-10-14 03:32:36,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:36,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:36,583 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:36,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:36,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060504278] [2024-10-14 03:32:36,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060504278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:32:36,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:32:36,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:32:36,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030156554] [2024-10-14 03:32:36,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:32:36,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:32:36,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:36,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:32:36,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:36,585 INFO L87 Difference]: Start difference. First operand 1230 states and 1691 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-10-14 03:32:36,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:36,605 INFO L93 Difference]: Finished difference Result 1828 states and 2518 transitions. [2024-10-14 03:32:36,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:32:36,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2024-10-14 03:32:36,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:36,607 INFO L225 Difference]: With dead ends: 1828 [2024-10-14 03:32:36,607 INFO L226 Difference]: Without dead ends: 638 [2024-10-14 03:32:36,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:32:36,609 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 30 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:36,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 137 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:32:36,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-10-14 03:32:36,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 636. [2024-10-14 03:32:36,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 635 states have (on average 1.3464566929133859) internal successors, (855), 635 states have internal predecessors, (855), 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) [2024-10-14 03:32:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 855 transitions. [2024-10-14 03:32:36,624 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 855 transitions. Word has length 65 [2024-10-14 03:32:36,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:36,624 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 855 transitions. [2024-10-14 03:32:36,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-10-14 03:32:36,624 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 855 transitions. [2024-10-14 03:32:36,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 03:32:36,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:36,625 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:36,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:32:36,625 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:36,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:36,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1624577536, now seen corresponding path program 1 times [2024-10-14 03:32:36,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:36,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662979327] [2024-10-14 03:32:36,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:36,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:37,903 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:37,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:37,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662979327] [2024-10-14 03:32:37,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662979327] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:32:37,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911774141] [2024-10-14 03:32:37,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:37,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:32:37,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:32:37,907 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) [2024-10-14 03:32:37,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 03:32:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:37,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 03:32:37,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:32:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:32:38,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:32:38,334 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:32:38,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911774141] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:32:38,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:32:38,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 4] total 17 [2024-10-14 03:32:38,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804545550] [2024-10-14 03:32:38,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:32:38,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-14 03:32:38,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:38,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-14 03:32:38,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-10-14 03:32:38,336 INFO L87 Difference]: Start difference. First operand 636 states and 855 transitions. Second operand has 17 states, 17 states have (on average 11.058823529411764) internal successors, (188), 17 states have internal predecessors, (188), 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) [2024-10-14 03:32:40,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:40,107 INFO L93 Difference]: Finished difference Result 5115 states and 6896 transitions. [2024-10-14 03:32:40,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-14 03:32:40,108 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 11.058823529411764) internal successors, (188), 17 states have internal predecessors, (188), 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 67 [2024-10-14 03:32:40,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:40,113 INFO L225 Difference]: With dead ends: 5115 [2024-10-14 03:32:40,113 INFO L226 Difference]: Without dead ends: 4519 [2024-10-14 03:32:40,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1172 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=696, Invalid=3210, Unknown=0, NotChecked=0, Total=3906 [2024-10-14 03:32:40,116 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 1680 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:40,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 503 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 03:32:40,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4519 states. [2024-10-14 03:32:40,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4519 to 4391. [2024-10-14 03:32:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4390 states have (on average 1.2968109339407745) internal successors, (5693), 4390 states have internal predecessors, (5693), 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) [2024-10-14 03:32:40,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 5693 transitions. [2024-10-14 03:32:40,202 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 5693 transitions. Word has length 67 [2024-10-14 03:32:40,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:40,202 INFO L471 AbstractCegarLoop]: Abstraction has 4391 states and 5693 transitions. [2024-10-14 03:32:40,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.058823529411764) internal successors, (188), 17 states have internal predecessors, (188), 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) [2024-10-14 03:32:40,202 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 5693 transitions. [2024-10-14 03:32:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 03:32:40,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:40,203 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:40,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 03:32:40,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:32:40,404 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:40,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:40,405 INFO L85 PathProgramCache]: Analyzing trace with hash 385389775, now seen corresponding path program 1 times [2024-10-14 03:32:40,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:40,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406607430] [2024-10-14 03:32:40,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:40,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:40,768 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:40,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:40,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406607430] [2024-10-14 03:32:40,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406607430] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:32:40,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088412178] [2024-10-14 03:32:40,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:40,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:32:40,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:32:40,772 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) [2024-10-14 03:32:40,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 03:32:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:40,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 03:32:40,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:32:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:41,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:32:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:41,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088412178] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:32:41,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:32:41,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-10-14 03:32:41,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003433372] [2024-10-14 03:32:41,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:32:41,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 03:32:41,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:41,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 03:32:41,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-10-14 03:32:41,924 INFO L87 Difference]: Start difference. First operand 4391 states and 5693 transitions. Second operand has 19 states, 19 states have (on average 7.421052631578948) internal successors, (141), 18 states have internal predecessors, (141), 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) [2024-10-14 03:32:42,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:42,418 INFO L93 Difference]: Finished difference Result 11827 states and 15337 transitions. [2024-10-14 03:32:42,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 03:32:42,418 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.421052631578948) internal successors, (141), 18 states have internal predecessors, (141), 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 68 [2024-10-14 03:32:42,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:42,428 INFO L225 Difference]: With dead ends: 11827 [2024-10-14 03:32:42,429 INFO L226 Difference]: Without dead ends: 7684 [2024-10-14 03:32:42,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2024-10-14 03:32:42,434 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 441 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:42,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 588 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:32:42,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7684 states. [2024-10-14 03:32:42,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7684 to 7680. [2024-10-14 03:32:42,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7680 states, 7679 states have (on average 1.2876676650605547) internal successors, (9888), 7679 states have internal predecessors, (9888), 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) [2024-10-14 03:32:42,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7680 states to 7680 states and 9888 transitions. [2024-10-14 03:32:42,626 INFO L78 Accepts]: Start accepts. Automaton has 7680 states and 9888 transitions. Word has length 68 [2024-10-14 03:32:42,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:42,626 INFO L471 AbstractCegarLoop]: Abstraction has 7680 states and 9888 transitions. [2024-10-14 03:32:42,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.421052631578948) internal successors, (141), 18 states have internal predecessors, (141), 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) [2024-10-14 03:32:42,626 INFO L276 IsEmpty]: Start isEmpty. Operand 7680 states and 9888 transitions. [2024-10-14 03:32:42,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 03:32:42,627 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:42,627 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:42,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 03:32:42,831 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,SelfDestructingSolverStorable19 [2024-10-14 03:32:42,832 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:42,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:42,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1536175567, now seen corresponding path program 1 times [2024-10-14 03:32:42,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:42,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120756987] [2024-10-14 03:32:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:42,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:44,008 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:44,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:44,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120756987] [2024-10-14 03:32:44,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120756987] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:32:44,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317965379] [2024-10-14 03:32:44,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:44,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:32:44,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:32:44,010 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) [2024-10-14 03:32:44,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 03:32:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:44,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 03:32:44,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:32:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:44,404 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:32:44,952 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:44,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317965379] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:32:44,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:32:44,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 25 [2024-10-14 03:32:44,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142254432] [2024-10-14 03:32:44,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:32:44,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-14 03:32:44,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:44,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-14 03:32:44,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2024-10-14 03:32:44,956 INFO L87 Difference]: Start difference. First operand 7680 states and 9888 transitions. Second operand has 26 states, 26 states have (on average 6.923076923076923) internal successors, (180), 25 states have internal predecessors, (180), 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) [2024-10-14 03:32:46,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:46,690 INFO L93 Difference]: Finished difference Result 24222 states and 31408 transitions. [2024-10-14 03:32:46,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-14 03:32:46,691 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.923076923076923) internal successors, (180), 25 states have internal predecessors, (180), 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 68 [2024-10-14 03:32:46,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:46,714 INFO L225 Difference]: With dead ends: 24222 [2024-10-14 03:32:46,714 INFO L226 Difference]: Without dead ends: 16969 [2024-10-14 03:32:46,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=557, Invalid=2413, Unknown=0, NotChecked=0, Total=2970 [2024-10-14 03:32:46,724 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 1722 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:46,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 711 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 03:32:46,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16969 states. [2024-10-14 03:32:47,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16969 to 15907. [2024-10-14 03:32:47,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15907 states, 15906 states have (on average 1.268703633848862) internal successors, (20180), 15906 states have internal predecessors, (20180), 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) [2024-10-14 03:32:47,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15907 states to 15907 states and 20180 transitions. [2024-10-14 03:32:47,093 INFO L78 Accepts]: Start accepts. Automaton has 15907 states and 20180 transitions. Word has length 68 [2024-10-14 03:32:47,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:47,094 INFO L471 AbstractCegarLoop]: Abstraction has 15907 states and 20180 transitions. [2024-10-14 03:32:47,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.923076923076923) internal successors, (180), 25 states have internal predecessors, (180), 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) [2024-10-14 03:32:47,094 INFO L276 IsEmpty]: Start isEmpty. Operand 15907 states and 20180 transitions. [2024-10-14 03:32:47,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 03:32:47,094 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:47,095 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:47,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 03:32:47,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:32:47,295 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:47,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:47,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1811367197, now seen corresponding path program 1 times [2024-10-14 03:32:47,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:47,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955846748] [2024-10-14 03:32:47,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:47,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:47,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:47,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955846748] [2024-10-14 03:32:47,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955846748] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:32:47,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973468381] [2024-10-14 03:32:47,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:47,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:32:47,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:32:47,622 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) [2024-10-14 03:32:47,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 03:32:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:47,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 03:32:47,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:32:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:48,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:32:48,947 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:48,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973468381] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:32:48,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:32:48,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 28 [2024-10-14 03:32:48,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072317657] [2024-10-14 03:32:48,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:32:48,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-14 03:32:48,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:48,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-14 03:32:48,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2024-10-14 03:32:48,949 INFO L87 Difference]: Start difference. First operand 15907 states and 20180 transitions. Second operand has 29 states, 29 states have (on average 6.344827586206897) internal successors, (184), 28 states have internal predecessors, (184), 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) [2024-10-14 03:32:51,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:32:51,393 INFO L93 Difference]: Finished difference Result 31673 states and 40227 transitions. [2024-10-14 03:32:51,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-14 03:32:51,393 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.344827586206897) internal successors, (184), 28 states have internal predecessors, (184), 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 68 [2024-10-14 03:32:51,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:32:51,418 INFO L225 Difference]: With dead ends: 31673 [2024-10-14 03:32:51,419 INFO L226 Difference]: Without dead ends: 17612 [2024-10-14 03:32:51,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1203 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=999, Invalid=4257, Unknown=0, NotChecked=0, Total=5256 [2024-10-14 03:32:51,432 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 2063 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2063 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 03:32:51,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2063 Valid, 869 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 03:32:51,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17612 states. [2024-10-14 03:32:51,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17612 to 12854. [2024-10-14 03:32:51,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12854 states, 12853 states have (on average 1.2478020695557457) internal successors, (16038), 12853 states have internal predecessors, (16038), 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) [2024-10-14 03:32:51,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12854 states to 12854 states and 16038 transitions. [2024-10-14 03:32:51,751 INFO L78 Accepts]: Start accepts. Automaton has 12854 states and 16038 transitions. Word has length 68 [2024-10-14 03:32:51,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:32:51,751 INFO L471 AbstractCegarLoop]: Abstraction has 12854 states and 16038 transitions. [2024-10-14 03:32:51,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.344827586206897) internal successors, (184), 28 states have internal predecessors, (184), 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) [2024-10-14 03:32:51,752 INFO L276 IsEmpty]: Start isEmpty. Operand 12854 states and 16038 transitions. [2024-10-14 03:32:51,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 03:32:51,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:32:51,753 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:32:51,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 03:32:51,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:32:51,958 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:32:51,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:32:51,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1044444942, now seen corresponding path program 1 times [2024-10-14 03:32:51,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:32:51,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292294402] [2024-10-14 03:32:51,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:51,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:32:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:52,184 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:52,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:32:52,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292294402] [2024-10-14 03:32:52,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292294402] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:32:52,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238753970] [2024-10-14 03:32:52,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:32:52,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:32:52,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:32:52,186 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) [2024-10-14 03:32:52,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 03:32:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:32:52,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-10-14 03:32:52,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:32:54,508 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:54,508 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:32:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:32:56,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238753970] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:32:56,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:32:56,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 15] total 36 [2024-10-14 03:32:56,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750188510] [2024-10-14 03:32:56,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:32:56,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-10-14 03:32:56,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:32:56,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-10-14 03:32:56,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1101, Unknown=0, NotChecked=0, Total=1260 [2024-10-14 03:32:56,690 INFO L87 Difference]: Start difference. First operand 12854 states and 16038 transitions. Second operand has 36 states, 36 states have (on average 5.25) internal successors, (189), 36 states have internal predecessors, (189), 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) [2024-10-14 03:33:09,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:33:09,164 INFO L93 Difference]: Finished difference Result 46242 states and 57689 transitions. [2024-10-14 03:33:09,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2024-10-14 03:33:09,164 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 5.25) internal successors, (189), 36 states have internal predecessors, (189), 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 69 [2024-10-14 03:33:09,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:33:09,207 INFO L225 Difference]: With dead ends: 46242 [2024-10-14 03:33:09,207 INFO L226 Difference]: Without dead ends: 34448 [2024-10-14 03:33:09,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4599 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=2239, Invalid=12281, Unknown=0, NotChecked=0, Total=14520 [2024-10-14 03:33:09,224 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 1203 mSDsluCounter, 2349 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 2472 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 03:33:09,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 2472 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 03:33:09,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34448 states. [2024-10-14 03:33:10,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34448 to 31202. [2024-10-14 03:33:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31202 states, 31201 states have (on average 1.2376846895932823) internal successors, (38617), 31201 states have internal predecessors, (38617), 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) [2024-10-14 03:33:10,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31202 states to 31202 states and 38617 transitions. [2024-10-14 03:33:10,286 INFO L78 Accepts]: Start accepts. Automaton has 31202 states and 38617 transitions. Word has length 69 [2024-10-14 03:33:10,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:33:10,286 INFO L471 AbstractCegarLoop]: Abstraction has 31202 states and 38617 transitions. [2024-10-14 03:33:10,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.25) internal successors, (189), 36 states have internal predecessors, (189), 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) [2024-10-14 03:33:10,287 INFO L276 IsEmpty]: Start isEmpty. Operand 31202 states and 38617 transitions. [2024-10-14 03:33:10,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-14 03:33:10,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:33:10,287 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:33:10,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 03:33:10,488 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,SelfDestructingSolverStorable22 [2024-10-14 03:33:10,488 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:33:10,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:33:10,489 INFO L85 PathProgramCache]: Analyzing trace with hash -865938156, now seen corresponding path program 1 times [2024-10-14 03:33:10,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:33:10,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324782290] [2024-10-14 03:33:10,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:33:10,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:33:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:33:11,049 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:33:11,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:33:11,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324782290] [2024-10-14 03:33:11,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324782290] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:33:11,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516091942] [2024-10-14 03:33:11,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:33:11,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:33:11,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:33:11,051 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) [2024-10-14 03:33:11,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 03:33:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:33:11,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-10-14 03:33:11,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:33:14,028 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:33:14,029 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:33:16,534 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:33:16,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516091942] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:33:16,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:33:16,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 26, 24] total 55 [2024-10-14 03:33:16,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105252286] [2024-10-14 03:33:16,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:33:16,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-10-14 03:33:16,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:33:16,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-10-14 03:33:16,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=2613, Unknown=0, NotChecked=0, Total=2970 [2024-10-14 03:33:16,536 INFO L87 Difference]: Start difference. First operand 31202 states and 38617 transitions. Second operand has 55 states, 55 states have (on average 3.290909090909091) internal successors, (181), 55 states have internal predecessors, (181), 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) [2024-10-14 03:33:41,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:33:41,893 INFO L93 Difference]: Finished difference Result 91046 states and 113914 transitions. [2024-10-14 03:33:41,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2024-10-14 03:33:41,893 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 3.290909090909091) internal successors, (181), 55 states have internal predecessors, (181), 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 71 [2024-10-14 03:33:41,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:33:41,978 INFO L225 Difference]: With dead ends: 91046 [2024-10-14 03:33:41,978 INFO L226 Difference]: Without dead ends: 78080 [2024-10-14 03:33:41,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20305 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=8512, Invalid=44618, Unknown=0, NotChecked=0, Total=53130 [2024-10-14 03:33:41,999 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 3259 mSDsluCounter, 5476 mSDsCounter, 0 mSdLazyCounter, 5537 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3259 SdHoareTripleChecker+Valid, 5667 SdHoareTripleChecker+Invalid, 5621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 5537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-14 03:33:41,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3259 Valid, 5667 Invalid, 5621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 5537 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-14 03:33:42,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78080 states. [2024-10-14 03:33:43,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78080 to 35828. [2024-10-14 03:33:43,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35828 states, 35827 states have (on average 1.249448739777263) internal successors, (44764), 35827 states have internal predecessors, (44764), 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) [2024-10-14 03:33:43,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35828 states to 35828 states and 44764 transitions. [2024-10-14 03:33:43,583 INFO L78 Accepts]: Start accepts. Automaton has 35828 states and 44764 transitions. Word has length 71 [2024-10-14 03:33:43,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:33:43,583 INFO L471 AbstractCegarLoop]: Abstraction has 35828 states and 44764 transitions. [2024-10-14 03:33:43,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 3.290909090909091) internal successors, (181), 55 states have internal predecessors, (181), 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) [2024-10-14 03:33:43,584 INFO L276 IsEmpty]: Start isEmpty. Operand 35828 states and 44764 transitions. [2024-10-14 03:33:43,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 03:33:43,590 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:33:43,591 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-10-14 03:33:43,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 03:33:43,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:33:43,797 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:33:43,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:33:43,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1701316515, now seen corresponding path program 1 times [2024-10-14 03:33:43,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:33:43,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803639901] [2024-10-14 03:33:43,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:33:43,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:33:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:33:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 44 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:33:44,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:33:44,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803639901] [2024-10-14 03:33:44,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803639901] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:33:44,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368269160] [2024-10-14 03:33:44,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:33:44,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:33:44,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:33:44,667 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) [2024-10-14 03:33:44,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 03:33:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:33:44,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 03:33:44,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:33:45,370 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 50 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:33:45,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:33:46,590 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 44 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:33:46,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368269160] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:33:46,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:33:46,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 26 [2024-10-14 03:33:46,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722253067] [2024-10-14 03:33:46,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:33:46,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-14 03:33:46,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:33:46,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-14 03:33:46,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2024-10-14 03:33:46,592 INFO L87 Difference]: Start difference. First operand 35828 states and 44764 transitions. Second operand has 27 states, 27 states have (on average 8.88888888888889) internal successors, (240), 26 states have internal predecessors, (240), 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) [2024-10-14 03:33:48,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:33:48,430 INFO L93 Difference]: Finished difference Result 53696 states and 67149 transitions. [2024-10-14 03:33:48,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 03:33:48,431 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 8.88888888888889) internal successors, (240), 26 states have internal predecessors, (240), 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 112 [2024-10-14 03:33:48,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:33:48,467 INFO L225 Difference]: With dead ends: 53696 [2024-10-14 03:33:48,467 INFO L226 Difference]: Without dead ends: 36168 [2024-10-14 03:33:48,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=308, Invalid=1098, Unknown=0, NotChecked=0, Total=1406 [2024-10-14 03:33:48,476 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 498 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:33:48,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 713 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:33:48,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36168 states. [2024-10-14 03:33:49,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36168 to 30862. [2024-10-14 03:33:49,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30862 states, 30861 states have (on average 1.2380674637892486) internal successors, (38208), 30861 states have internal predecessors, (38208), 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) [2024-10-14 03:33:49,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30862 states to 30862 states and 38208 transitions. [2024-10-14 03:33:49,916 INFO L78 Accepts]: Start accepts. Automaton has 30862 states and 38208 transitions. Word has length 112 [2024-10-14 03:33:49,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:33:49,916 INFO L471 AbstractCegarLoop]: Abstraction has 30862 states and 38208 transitions. [2024-10-14 03:33:49,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 8.88888888888889) internal successors, (240), 26 states have internal predecessors, (240), 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) [2024-10-14 03:33:49,916 INFO L276 IsEmpty]: Start isEmpty. Operand 30862 states and 38208 transitions. [2024-10-14 03:33:49,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 03:33:49,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:33:49,920 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-10-14 03:33:49,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 03:33:50,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:33:50,121 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:33:50,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:33:50,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1442864989, now seen corresponding path program 1 times [2024-10-14 03:33:50,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:33:50,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287068075] [2024-10-14 03:33:50,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:33:50,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:33:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:33:50,576 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 27 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:33:50,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:33:50,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287068075] [2024-10-14 03:33:50,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287068075] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:33:50,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429366846] [2024-10-14 03:33:50,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:33:50,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:33:50,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:33:50,578 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) [2024-10-14 03:33:50,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 03:33:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:33:50,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 03:33:50,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:33:51,182 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 37 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:33:51,182 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:33:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 35 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:33:52,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429366846] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:33:52,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:33:52,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 31 [2024-10-14 03:33:52,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854718038] [2024-10-14 03:33:52,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:33:52,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-14 03:33:52,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:33:52,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-14 03:33:52,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=885, Unknown=0, NotChecked=0, Total=992 [2024-10-14 03:33:52,548 INFO L87 Difference]: Start difference. First operand 30862 states and 38208 transitions. Second operand has 32 states, 32 states have (on average 9.5625) internal successors, (306), 31 states have internal predecessors, (306), 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) [2024-10-14 03:33:55,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:33:55,954 INFO L93 Difference]: Finished difference Result 58520 states and 72962 transitions. [2024-10-14 03:33:55,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-14 03:33:55,954 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.5625) internal successors, (306), 31 states have internal predecessors, (306), 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 112 [2024-10-14 03:33:55,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:33:55,991 INFO L225 Difference]: With dead ends: 58520 [2024-10-14 03:33:55,991 INFO L226 Difference]: Without dead ends: 35572 [2024-10-14 03:33:56,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1059 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1128, Invalid=4572, Unknown=0, NotChecked=0, Total=5700 [2024-10-14 03:33:56,005 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 1638 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 03:33:56,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1638 Valid, 1119 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 03:33:56,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35572 states. [2024-10-14 03:33:57,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35572 to 30542. [2024-10-14 03:33:57,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30542 states, 30541 states have (on average 1.212599456468354) internal successors, (37034), 30541 states have internal predecessors, (37034), 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) [2024-10-14 03:33:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30542 states to 30542 states and 37034 transitions. [2024-10-14 03:33:57,748 INFO L78 Accepts]: Start accepts. Automaton has 30542 states and 37034 transitions. Word has length 112 [2024-10-14 03:33:57,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:33:57,748 INFO L471 AbstractCegarLoop]: Abstraction has 30542 states and 37034 transitions. [2024-10-14 03:33:57,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.5625) internal successors, (306), 31 states have internal predecessors, (306), 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) [2024-10-14 03:33:57,748 INFO L276 IsEmpty]: Start isEmpty. Operand 30542 states and 37034 transitions. [2024-10-14 03:33:57,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-14 03:33:57,751 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:33:57,752 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-10-14 03:33:57,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0