./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-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5aad5fd4611705ad6fdf71db638f2162c13b3da201193a54a746a0dc7cc3072f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:41:57,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:41:57,372 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:41:57,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:41:57,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:41:57,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:41:57,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:41:57,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:41:57,426 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:41:57,426 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:41:57,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:41:57,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:41:57,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:41:57,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:41:57,428 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:41:57,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:41:57,432 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:41:57,434 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:41:57,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:41:57,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:41:57,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:41:57,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:41:57,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:41:57,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:41:57,437 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:41:57,437 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:41:57,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:41:57,438 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:41:57,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:41:57,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:41:57,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:41:57,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:41:57,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:41:57,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:41:57,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:41:57,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:41:57,441 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:41:57,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:41:57,449 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:41:57,450 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:41:57,450 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:41:57,450 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:41:57,450 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5aad5fd4611705ad6fdf71db638f2162c13b3da201193a54a746a0dc7cc3072f [2024-10-11 03:41:57,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:41:57,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:41:57,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:41:57,732 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:41:57,732 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:41:57,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-11 03:41:59,278 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:41:59,513 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:41:59,513 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-11 03:41:59,528 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d50f2c820/0d2df64a3d1242688aa7952464e66ce6/FLAG24c11a804 [2024-10-11 03:41:59,545 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d50f2c820/0d2df64a3d1242688aa7952464e66ce6 [2024-10-11 03:41:59,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:41:59,549 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:41:59,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:41:59,551 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:41:59,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:41:59,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:41:59" (1/1) ... [2024-10-11 03:41:59,559 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd91fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:59, skipping insertion in model container [2024-10-11 03:41:59,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:41:59" (1/1) ... [2024-10-11 03:41:59,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:41:59,832 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-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[7251,7264] [2024-10-11 03:41:59,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:41:59,927 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:41:59,998 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-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[7251,7264] [2024-10-11 03:42:00,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:42:00,057 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:42:00,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00 WrapperNode [2024-10-11 03:42:00,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:42:00,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:42:00,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:42:00,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:42:00,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (1/1) ... [2024-10-11 03:42:00,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (1/1) ... [2024-10-11 03:42:00,126 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 736 [2024-10-11 03:42:00,127 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:42:00,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:42:00,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:42:00,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:42:00,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (1/1) ... [2024-10-11 03:42:00,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (1/1) ... [2024-10-11 03:42:00,142 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (1/1) ... [2024-10-11 03:42:00,167 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 03:42:00,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (1/1) ... [2024-10-11 03:42:00,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (1/1) ... [2024-10-11 03:42:00,186 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (1/1) ... [2024-10-11 03:42:00,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (1/1) ... [2024-10-11 03:42:00,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (1/1) ... [2024-10-11 03:42:00,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (1/1) ... [2024-10-11 03:42:00,218 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:42:00,220 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:42:00,220 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:42:00,220 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:42:00,221 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (1/1) ... [2024-10-11 03:42:00,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:42:00,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:42:00,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:42:00,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:42:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:42:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:42:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:42:00,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:42:00,475 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:42:00,477 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:42:01,220 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-10-11 03:42:01,221 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:42:01,273 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:42:01,274 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 03:42:01,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:42:01 BoogieIcfgContainer [2024-10-11 03:42:01,274 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:42:01,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:42:01,277 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:42:01,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:42:01,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:41:59" (1/3) ... [2024-10-11 03:42:01,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74240e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:42:01, skipping insertion in model container [2024-10-11 03:42:01,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:42:00" (2/3) ... [2024-10-11 03:42:01,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74240e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:42:01, skipping insertion in model container [2024-10-11 03:42:01,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:42:01" (3/3) ... [2024-10-11 03:42:01,285 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-11 03:42:01,298 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:42:01,298 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:42:01,360 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:42:01,366 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;@4f0d36de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:42:01,367 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:42:01,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 176 states have (on average 1.7272727272727273) internal successors, (304), 177 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:01,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 03:42:01,383 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:01,384 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:01,384 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:01,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:01,390 INFO L85 PathProgramCache]: Analyzing trace with hash -303443606, now seen corresponding path program 1 times [2024-10-11 03:42:01,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:01,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204559960] [2024-10-11 03:42:01,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:01,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:02,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:02,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:02,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204559960] [2024-10-11 03:42:02,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204559960] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:02,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:02,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:02,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650256496] [2024-10-11 03:42:02,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:02,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:42:02,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:02,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:42:02,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:42:02,111 INFO L87 Difference]: Start difference. First operand has 178 states, 176 states have (on average 1.7272727272727273) internal successors, (304), 177 states have internal predecessors, (304), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:02,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:02,365 INFO L93 Difference]: Finished difference Result 633 states and 1029 transitions. [2024-10-11 03:42:02,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:42:02,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-10-11 03:42:02,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:02,387 INFO L225 Difference]: With dead ends: 633 [2024-10-11 03:42:02,387 INFO L226 Difference]: Without dead ends: 540 [2024-10-11 03:42:02,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:42:02,397 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 1601 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:02,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 1097 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:42:02,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-10-11 03:42:02,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 274. [2024-10-11 03:42:02,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 1.5054945054945055) internal successors, (411), 273 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:02,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 411 transitions. [2024-10-11 03:42:02,498 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 411 transitions. Word has length 64 [2024-10-11 03:42:02,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:02,499 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 411 transitions. [2024-10-11 03:42:02,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:02,499 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 411 transitions. [2024-10-11 03:42:02,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 03:42:02,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:02,501 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:02,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:42:02,503 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:02,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:02,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1095782796, now seen corresponding path program 1 times [2024-10-11 03:42:02,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:02,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710797189] [2024-10-11 03:42:02,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:02,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:02,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:02,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:02,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710797189] [2024-10-11 03:42:02,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710797189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:02,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:02,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:02,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363646990] [2024-10-11 03:42:02,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:02,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:42:02,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:02,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:42:02,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:42:02,830 INFO L87 Difference]: Start difference. First operand 274 states and 411 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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) [2024-10-11 03:42:03,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:03,032 INFO L93 Difference]: Finished difference Result 1012 states and 1555 transitions. [2024-10-11 03:42:03,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:42:03,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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 [2024-10-11 03:42:03,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:03,038 INFO L225 Difference]: With dead ends: 1012 [2024-10-11 03:42:03,038 INFO L226 Difference]: Without dead ends: 800 [2024-10-11 03:42:03,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:42:03,043 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 836 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:03,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 848 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:42:03,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-10-11 03:42:03,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 794. [2024-10-11 03:42:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.5258511979823455) internal successors, (1210), 793 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:03,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1210 transitions. [2024-10-11 03:42:03,093 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1210 transitions. Word has length 65 [2024-10-11 03:42:03,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:03,093 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1210 transitions. [2024-10-11 03:42:03,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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) [2024-10-11 03:42:03,094 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1210 transitions. [2024-10-11 03:42:03,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 03:42:03,097 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:03,097 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:03,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:42:03,097 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:03,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:03,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1595686128, now seen corresponding path program 1 times [2024-10-11 03:42:03,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:03,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666977597] [2024-10-11 03:42:03,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:03,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:03,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:03,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:03,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666977597] [2024-10-11 03:42:03,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666977597] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:03,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:03,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:42:03,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439969864] [2024-10-11 03:42:03,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:03,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:42:03,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:03,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:42:03,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:42:03,276 INFO L87 Difference]: Start difference. First operand 794 states and 1210 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:03,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:03,564 INFO L93 Difference]: Finished difference Result 2126 states and 3280 transitions. [2024-10-11 03:42:03,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:42:03,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-11 03:42:03,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:03,572 INFO L225 Difference]: With dead ends: 2126 [2024-10-11 03:42:03,572 INFO L226 Difference]: Without dead ends: 1382 [2024-10-11 03:42:03,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:42:03,577 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 998 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:03,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 242 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:42:03,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2024-10-11 03:42:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1380. [2024-10-11 03:42:03,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.5337200870195795) internal successors, (2115), 1379 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:03,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2115 transitions. [2024-10-11 03:42:03,623 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2115 transitions. Word has length 66 [2024-10-11 03:42:03,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:03,624 INFO L471 AbstractCegarLoop]: Abstraction has 1380 states and 2115 transitions. [2024-10-11 03:42:03,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:03,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2115 transitions. [2024-10-11 03:42:03,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 03:42:03,628 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:03,628 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:03,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:42:03,629 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:03,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:03,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1582885390, now seen corresponding path program 1 times [2024-10-11 03:42:03,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:03,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955642699] [2024-10-11 03:42:03,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:03,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:03,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:03,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:03,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955642699] [2024-10-11 03:42:03,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955642699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:03,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:03,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:42:03,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855008683] [2024-10-11 03:42:03,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:03,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:42:03,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:03,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:42:03,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:42:03,788 INFO L87 Difference]: Start difference. First operand 1380 states and 2115 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:04,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:04,064 INFO L93 Difference]: Finished difference Result 3712 states and 5741 transitions. [2024-10-11 03:42:04,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:42:04,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-11 03:42:04,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:04,078 INFO L225 Difference]: With dead ends: 3712 [2024-10-11 03:42:04,078 INFO L226 Difference]: Without dead ends: 2432 [2024-10-11 03:42:04,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:42:04,082 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 924 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:04,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 248 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:42:04,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2024-10-11 03:42:04,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2430. [2024-10-11 03:42:04,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 2429 states have (on average 1.53684643886373) internal successors, (3733), 2429 states have internal predecessors, (3733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:04,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3733 transitions. [2024-10-11 03:42:04,138 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3733 transitions. Word has length 66 [2024-10-11 03:42:04,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:04,138 INFO L471 AbstractCegarLoop]: Abstraction has 2430 states and 3733 transitions. [2024-10-11 03:42:04,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:04,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3733 transitions. [2024-10-11 03:42:04,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 03:42:04,142 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:04,142 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:04,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:42:04,143 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:04,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:04,143 INFO L85 PathProgramCache]: Analyzing trace with hash 441008545, now seen corresponding path program 1 times [2024-10-11 03:42:04,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:04,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217140720] [2024-10-11 03:42:04,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:04,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:04,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:04,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217140720] [2024-10-11 03:42:04,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217140720] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:04,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:04,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:42:04,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361293565] [2024-10-11 03:42:04,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:04,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:42:04,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:04,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:42:04,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:42:04,288 INFO L87 Difference]: Start difference. First operand 2430 states and 3733 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:04,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:04,552 INFO L93 Difference]: Finished difference Result 6933 states and 10704 transitions. [2024-10-11 03:42:04,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:42:04,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-11 03:42:04,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:04,572 INFO L225 Difference]: With dead ends: 6933 [2024-10-11 03:42:04,572 INFO L226 Difference]: Without dead ends: 4576 [2024-10-11 03:42:04,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:42:04,580 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 950 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:04,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 246 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:42:04,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4576 states. [2024-10-11 03:42:04,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4576 to 4574. [2024-10-11 03:42:04,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4574 states, 4573 states have (on average 1.5344412858080034) internal successors, (7017), 4573 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:04,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4574 states to 4574 states and 7017 transitions. [2024-10-11 03:42:04,689 INFO L78 Accepts]: Start accepts. Automaton has 4574 states and 7017 transitions. Word has length 66 [2024-10-11 03:42:04,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:04,690 INFO L471 AbstractCegarLoop]: Abstraction has 4574 states and 7017 transitions. [2024-10-11 03:42:04,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:04,691 INFO L276 IsEmpty]: Start isEmpty. Operand 4574 states and 7017 transitions. [2024-10-11 03:42:04,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 03:42:04,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:04,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:04,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:42:04,694 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:04,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:04,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1544480193, now seen corresponding path program 1 times [2024-10-11 03:42:04,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:04,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997838503] [2024-10-11 03:42:04,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:04,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:04,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:04,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:04,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997838503] [2024-10-11 03:42:04,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997838503] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:04,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:04,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:42:04,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906152563] [2024-10-11 03:42:04,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:04,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:42:04,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:04,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:42:04,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:42:04,813 INFO L87 Difference]: Start difference. First operand 4574 states and 7017 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:05,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:05,079 INFO L93 Difference]: Finished difference Result 12540 states and 19290 transitions. [2024-10-11 03:42:05,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:42:05,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-11 03:42:05,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:05,109 INFO L225 Difference]: With dead ends: 12540 [2024-10-11 03:42:05,109 INFO L226 Difference]: Without dead ends: 8000 [2024-10-11 03:42:05,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:42:05,119 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 1012 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:05,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 240 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:42:05,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8000 states. [2024-10-11 03:42:05,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8000 to 7998. [2024-10-11 03:42:05,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7998 states, 7997 states have (on average 1.5250719019632362) internal successors, (12196), 7997 states have internal predecessors, (12196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7998 states to 7998 states and 12196 transitions. [2024-10-11 03:42:05,339 INFO L78 Accepts]: Start accepts. Automaton has 7998 states and 12196 transitions. Word has length 66 [2024-10-11 03:42:05,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:05,339 INFO L471 AbstractCegarLoop]: Abstraction has 7998 states and 12196 transitions. [2024-10-11 03:42:05,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:05,340 INFO L276 IsEmpty]: Start isEmpty. Operand 7998 states and 12196 transitions. [2024-10-11 03:42:05,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-11 03:42:05,342 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:05,342 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:05,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:42:05,342 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:05,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:05,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1843096928, now seen corresponding path program 1 times [2024-10-11 03:42:05,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:05,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119869459] [2024-10-11 03:42:05,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:05,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:05,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:05,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:05,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119869459] [2024-10-11 03:42:05,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119869459] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:05,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:05,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:42:05,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434044286] [2024-10-11 03:42:05,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:05,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:42:05,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:05,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:42:05,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:42:05,671 INFO L87 Difference]: Start difference. First operand 7998 states and 12196 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:05,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:05,727 INFO L93 Difference]: Finished difference Result 8224 states and 12533 transitions. [2024-10-11 03:42:05,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:42:05,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 [2024-10-11 03:42:05,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:05,755 INFO L225 Difference]: With dead ends: 8224 [2024-10-11 03:42:05,756 INFO L226 Difference]: Without dead ends: 8222 [2024-10-11 03:42:05,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:42:05,761 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:05,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 961 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:05,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8222 states. [2024-10-11 03:42:05,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8222 to 8222. [2024-10-11 03:42:05,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8222 states, 8221 states have (on average 1.5107651137331224) internal successors, (12420), 8221 states have internal predecessors, (12420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:05,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8222 states to 8222 states and 12420 transitions. [2024-10-11 03:42:05,940 INFO L78 Accepts]: Start accepts. Automaton has 8222 states and 12420 transitions. Word has length 67 [2024-10-11 03:42:05,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:05,940 INFO L471 AbstractCegarLoop]: Abstraction has 8222 states and 12420 transitions. [2024-10-11 03:42:05,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:05,940 INFO L276 IsEmpty]: Start isEmpty. Operand 8222 states and 12420 transitions. [2024-10-11 03:42:05,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:42:05,943 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:05,943 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:05,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:42:05,947 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:05,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:05,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1022976121, now seen corresponding path program 1 times [2024-10-11 03:42:05,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:05,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565256648] [2024-10-11 03:42:05,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:05,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:06,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:06,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:06,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565256648] [2024-10-11 03:42:06,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565256648] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:06,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:06,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:42:06,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528956450] [2024-10-11 03:42:06,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:06,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:42:06,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:06,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:42:06,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:42:06,197 INFO L87 Difference]: Start difference. First operand 8222 states and 12420 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:06,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:06,272 INFO L93 Difference]: Finished difference Result 22282 states and 33598 transitions. [2024-10-11 03:42:06,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:42:06,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 [2024-10-11 03:42:06,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:06,314 INFO L225 Difference]: With dead ends: 22282 [2024-10-11 03:42:06,315 INFO L226 Difference]: Without dead ends: 14632 [2024-10-11 03:42:06,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:42:06,328 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 171 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:06,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 707 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:06,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14632 states. [2024-10-11 03:42:06,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14632 to 14630. [2024-10-11 03:42:06,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14630 states, 14629 states have (on average 1.495932736345615) internal successors, (21884), 14629 states have internal predecessors, (21884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:06,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14630 states to 14630 states and 21884 transitions. [2024-10-11 03:42:06,715 INFO L78 Accepts]: Start accepts. Automaton has 14630 states and 21884 transitions. Word has length 68 [2024-10-11 03:42:06,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:06,716 INFO L471 AbstractCegarLoop]: Abstraction has 14630 states and 21884 transitions. [2024-10-11 03:42:06,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:06,717 INFO L276 IsEmpty]: Start isEmpty. Operand 14630 states and 21884 transitions. [2024-10-11 03:42:06,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 03:42:06,721 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:06,721 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:06,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:42:06,722 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:06,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:06,723 INFO L85 PathProgramCache]: Analyzing trace with hash 727982169, now seen corresponding path program 1 times [2024-10-11 03:42:06,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:06,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429337092] [2024-10-11 03:42:06,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:06,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:06,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:06,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429337092] [2024-10-11 03:42:06,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429337092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:06,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:06,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:06,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674334967] [2024-10-11 03:42:06,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:06,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:06,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:06,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:06,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:06,787 INFO L87 Difference]: Start difference. First operand 14630 states and 21884 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:06,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:06,958 INFO L93 Difference]: Finished difference Result 27257 states and 40752 transitions. [2024-10-11 03:42:06,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:06,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 [2024-10-11 03:42:06,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:07,000 INFO L225 Difference]: With dead ends: 27257 [2024-10-11 03:42:07,001 INFO L226 Difference]: Without dead ends: 18227 [2024-10-11 03:42:07,018 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 [2024-10-11 03:42:07,019 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 155 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:07,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 465 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:07,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18227 states. [2024-10-11 03:42:07,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18227 to 18018. [2024-10-11 03:42:07,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18018 states, 18017 states have (on average 1.4735527557306989) internal successors, (26549), 18017 states have internal predecessors, (26549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:07,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18018 states to 18018 states and 26549 transitions. [2024-10-11 03:42:07,505 INFO L78 Accepts]: Start accepts. Automaton has 18018 states and 26549 transitions. Word has length 69 [2024-10-11 03:42:07,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:07,507 INFO L471 AbstractCegarLoop]: Abstraction has 18018 states and 26549 transitions. [2024-10-11 03:42:07,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:07,507 INFO L276 IsEmpty]: Start isEmpty. Operand 18018 states and 26549 transitions. [2024-10-11 03:42:07,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 03:42:07,510 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:07,510 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:07,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:42:07,511 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:07,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:07,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1778498824, now seen corresponding path program 1 times [2024-10-11 03:42:07,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:07,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321636150] [2024-10-11 03:42:07,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:07,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:07,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:07,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321636150] [2024-10-11 03:42:07,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321636150] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:07,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:07,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:07,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005710387] [2024-10-11 03:42:07,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:07,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:07,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:07,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:07,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:07,586 INFO L87 Difference]: Start difference. First operand 18018 states and 26549 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:07,681 INFO L93 Difference]: Finished difference Result 25096 states and 36828 transitions. [2024-10-11 03:42:07,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:07,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 [2024-10-11 03:42:07,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:07,725 INFO L225 Difference]: With dead ends: 25096 [2024-10-11 03:42:07,726 INFO L226 Difference]: Without dead ends: 18507 [2024-10-11 03:42:07,741 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 [2024-10-11 03:42:07,742 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 143 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:07,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 463 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:07,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18507 states. [2024-10-11 03:42:08,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18507 to 16589. [2024-10-11 03:42:08,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16589 states, 16588 states have (on average 1.4471304557511455) internal successors, (24005), 16588 states have internal predecessors, (24005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:08,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16589 states to 16589 states and 24005 transitions. [2024-10-11 03:42:08,210 INFO L78 Accepts]: Start accepts. Automaton has 16589 states and 24005 transitions. Word has length 69 [2024-10-11 03:42:08,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:08,210 INFO L471 AbstractCegarLoop]: Abstraction has 16589 states and 24005 transitions. [2024-10-11 03:42:08,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:08,210 INFO L276 IsEmpty]: Start isEmpty. Operand 16589 states and 24005 transitions. [2024-10-11 03:42:08,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 03:42:08,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:08,214 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:08,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:42:08,214 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:08,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:08,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1077276120, now seen corresponding path program 1 times [2024-10-11 03:42:08,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:08,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826810278] [2024-10-11 03:42:08,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:08,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:08,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:08,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:08,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826810278] [2024-10-11 03:42:08,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826810278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:08,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:08,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:08,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593228812] [2024-10-11 03:42:08,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:08,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:42:08,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:08,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:42:08,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:42:08,403 INFO L87 Difference]: Start difference. First operand 16589 states and 24005 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:08,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:08,739 INFO L93 Difference]: Finished difference Result 34527 states and 50324 transitions. [2024-10-11 03:42:08,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:42:08,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 [2024-10-11 03:42:08,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:08,826 INFO L225 Difference]: With dead ends: 34527 [2024-10-11 03:42:08,826 INFO L226 Difference]: Without dead ends: 27401 [2024-10-11 03:42:08,847 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 [2024-10-11 03:42:08,848 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 1114 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:08,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1332 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:42:08,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27401 states. [2024-10-11 03:42:09,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27401 to 23015. [2024-10-11 03:42:09,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23015 states, 23014 states have (on average 1.4476840184235682) internal successors, (33317), 23014 states have internal predecessors, (33317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:09,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23015 states to 23015 states and 33317 transitions. [2024-10-11 03:42:09,351 INFO L78 Accepts]: Start accepts. Automaton has 23015 states and 33317 transitions. Word has length 69 [2024-10-11 03:42:09,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:09,351 INFO L471 AbstractCegarLoop]: Abstraction has 23015 states and 33317 transitions. [2024-10-11 03:42:09,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:09,351 INFO L276 IsEmpty]: Start isEmpty. Operand 23015 states and 33317 transitions. [2024-10-11 03:42:09,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 03:42:09,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:09,355 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:09,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:42:09,355 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:09,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:09,356 INFO L85 PathProgramCache]: Analyzing trace with hash -736167559, now seen corresponding path program 1 times [2024-10-11 03:42:09,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:09,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891641810] [2024-10-11 03:42:09,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:09,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:09,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:09,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:09,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891641810] [2024-10-11 03:42:09,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891641810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:09,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:09,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:09,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820724421] [2024-10-11 03:42:09,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:09,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:09,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:09,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:09,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:09,427 INFO L87 Difference]: Start difference. First operand 23015 states and 33317 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:09,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:09,589 INFO L93 Difference]: Finished difference Result 52468 states and 75877 transitions. [2024-10-11 03:42:09,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:09,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 [2024-10-11 03:42:09,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:09,788 INFO L225 Difference]: With dead ends: 52468 [2024-10-11 03:42:09,788 INFO L226 Difference]: Without dead ends: 31623 [2024-10-11 03:42:09,867 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 [2024-10-11 03:42:09,870 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 173 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:09,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 461 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:09,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31623 states. [2024-10-11 03:42:10,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31623 to 31531. [2024-10-11 03:42:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31531 states, 31530 states have (on average 1.4263875673961306) internal successors, (44974), 31530 states have internal predecessors, (44974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:10,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31531 states to 31531 states and 44974 transitions. [2024-10-11 03:42:10,434 INFO L78 Accepts]: Start accepts. Automaton has 31531 states and 44974 transitions. Word has length 69 [2024-10-11 03:42:10,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:10,435 INFO L471 AbstractCegarLoop]: Abstraction has 31531 states and 44974 transitions. [2024-10-11 03:42:10,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:10,435 INFO L276 IsEmpty]: Start isEmpty. Operand 31531 states and 44974 transitions. [2024-10-11 03:42:10,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 03:42:10,440 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:10,440 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:10,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:42:10,440 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:10,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:10,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1508312264, now seen corresponding path program 1 times [2024-10-11 03:42:10,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:10,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773459488] [2024-10-11 03:42:10,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:10,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:10,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:10,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:10,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773459488] [2024-10-11 03:42:10,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773459488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:10,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:10,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:10,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047815764] [2024-10-11 03:42:10,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:10,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:42:10,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:10,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:42:10,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:42:10,683 INFO L87 Difference]: Start difference. First operand 31531 states and 44974 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:11,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:11,014 INFO L93 Difference]: Finished difference Result 45146 states and 64652 transitions. [2024-10-11 03:42:11,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:42:11,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 [2024-10-11 03:42:11,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:11,091 INFO L225 Difference]: With dead ends: 45146 [2024-10-11 03:42:11,091 INFO L226 Difference]: Without dead ends: 42918 [2024-10-11 03:42:11,103 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 [2024-10-11 03:42:11,103 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 1115 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:11,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 1174 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:42:11,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42918 states. [2024-10-11 03:42:11,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42918 to 33735. [2024-10-11 03:42:11,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33735 states, 33734 states have (on average 1.4264540226477738) internal successors, (48120), 33734 states have internal predecessors, (48120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33735 states to 33735 states and 48120 transitions. [2024-10-11 03:42:11,723 INFO L78 Accepts]: Start accepts. Automaton has 33735 states and 48120 transitions. Word has length 69 [2024-10-11 03:42:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:11,723 INFO L471 AbstractCegarLoop]: Abstraction has 33735 states and 48120 transitions. [2024-10-11 03:42:11,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:11,724 INFO L276 IsEmpty]: Start isEmpty. Operand 33735 states and 48120 transitions. [2024-10-11 03:42:11,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 03:42:11,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:11,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:11,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:42:11,729 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:11,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:11,730 INFO L85 PathProgramCache]: Analyzing trace with hash -567435143, now seen corresponding path program 1 times [2024-10-11 03:42:11,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:11,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734485705] [2024-10-11 03:42:11,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:11,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:11,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:11,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:11,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734485705] [2024-10-11 03:42:11,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734485705] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:11,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:11,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:11,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128194393] [2024-10-11 03:42:11,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:11,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:42:11,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:11,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:42:11,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:42:11,904 INFO L87 Difference]: Start difference. First operand 33735 states and 48120 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:12,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:12,421 INFO L93 Difference]: Finished difference Result 50022 states and 71662 transitions. [2024-10-11 03:42:12,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:42:12,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 [2024-10-11 03:42:12,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:12,526 INFO L225 Difference]: With dead ends: 50022 [2024-10-11 03:42:12,526 INFO L226 Difference]: Without dead ends: 45066 [2024-10-11 03:42:12,544 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 [2024-10-11 03:42:12,545 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 1022 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:12,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 1364 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:42:12,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45066 states. [2024-10-11 03:42:13,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45066 to 38659. [2024-10-11 03:42:13,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38659 states, 38658 states have (on average 1.4265093900356978) internal successors, (55146), 38658 states have internal predecessors, (55146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:13,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38659 states to 38659 states and 55146 transitions. [2024-10-11 03:42:13,217 INFO L78 Accepts]: Start accepts. Automaton has 38659 states and 55146 transitions. Word has length 69 [2024-10-11 03:42:13,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:13,217 INFO L471 AbstractCegarLoop]: Abstraction has 38659 states and 55146 transitions. [2024-10-11 03:42:13,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:13,218 INFO L276 IsEmpty]: Start isEmpty. Operand 38659 states and 55146 transitions. [2024-10-11 03:42:13,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 03:42:13,222 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:13,222 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:13,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:42:13,223 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:13,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:13,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1772958041, now seen corresponding path program 1 times [2024-10-11 03:42:13,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:13,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649861193] [2024-10-11 03:42:13,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:13,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:13,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:13,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:13,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649861193] [2024-10-11 03:42:13,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649861193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:13,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:13,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:13,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545689865] [2024-10-11 03:42:13,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:13,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:42:13,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:13,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:42:13,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:42:13,372 INFO L87 Difference]: Start difference. First operand 38659 states and 55146 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:13,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:13,639 INFO L93 Difference]: Finished difference Result 62814 states and 90072 transitions. [2024-10-11 03:42:13,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:42:13,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 [2024-10-11 03:42:13,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:13,733 INFO L225 Difference]: With dead ends: 62814 [2024-10-11 03:42:13,733 INFO L226 Difference]: Without dead ends: 53478 [2024-10-11 03:42:13,763 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 [2024-10-11 03:42:13,763 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 1115 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:13,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 1296 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:42:13,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53478 states. [2024-10-11 03:42:14,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53478 to 45711. [2024-10-11 03:42:14,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45711 states, 45710 states have (on average 1.4269962809013346) internal successors, (65228), 45710 states have internal predecessors, (65228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:14,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45711 states to 45711 states and 65228 transitions. [2024-10-11 03:42:14,802 INFO L78 Accepts]: Start accepts. Automaton has 45711 states and 65228 transitions. Word has length 69 [2024-10-11 03:42:14,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:14,802 INFO L471 AbstractCegarLoop]: Abstraction has 45711 states and 65228 transitions. [2024-10-11 03:42:14,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:14,802 INFO L276 IsEmpty]: Start isEmpty. Operand 45711 states and 65228 transitions. [2024-10-11 03:42:14,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-11 03:42:14,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:14,810 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:14,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:42:14,810 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:14,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:14,811 INFO L85 PathProgramCache]: Analyzing trace with hash -390496674, now seen corresponding path program 1 times [2024-10-11 03:42:14,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:14,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72829644] [2024-10-11 03:42:14,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:14,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:14,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:14,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:14,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72829644] [2024-10-11 03:42:14,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72829644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:14,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:14,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:14,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537869971] [2024-10-11 03:42:14,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:14,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:14,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:14,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:14,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:14,893 INFO L87 Difference]: Start difference. First operand 45711 states and 65228 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:15,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:15,214 INFO L93 Difference]: Finished difference Result 95183 states and 135133 transitions. [2024-10-11 03:42:15,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:15,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-10-11 03:42:15,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:15,288 INFO L225 Difference]: With dead ends: 95183 [2024-10-11 03:42:15,289 INFO L226 Difference]: Without dead ends: 51853 [2024-10-11 03:42:15,332 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 [2024-10-11 03:42:15,333 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 158 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:15,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 561 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:15,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51853 states. [2024-10-11 03:42:16,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51853 to 46977. [2024-10-11 03:42:16,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46977 states, 46976 states have (on average 1.3900928133514987) internal successors, (65301), 46976 states have internal predecessors, (65301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:16,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46977 states to 46977 states and 65301 transitions. [2024-10-11 03:42:16,244 INFO L78 Accepts]: Start accepts. Automaton has 46977 states and 65301 transitions. Word has length 72 [2024-10-11 03:42:16,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:16,244 INFO L471 AbstractCegarLoop]: Abstraction has 46977 states and 65301 transitions. [2024-10-11 03:42:16,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:16,244 INFO L276 IsEmpty]: Start isEmpty. Operand 46977 states and 65301 transitions. [2024-10-11 03:42:16,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 03:42:16,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:16,254 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:16,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 03:42:16,255 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:16,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:16,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1903153330, now seen corresponding path program 1 times [2024-10-11 03:42:16,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:16,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492374643] [2024-10-11 03:42:16,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:16,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:16,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:16,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:16,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492374643] [2024-10-11 03:42:16,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492374643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:16,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:16,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:16,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351684166] [2024-10-11 03:42:16,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:16,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:42:16,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:16,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:42:16,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:42:16,391 INFO L87 Difference]: Start difference. First operand 46977 states and 65301 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:17,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:17,188 INFO L93 Difference]: Finished difference Result 148554 states and 205682 transitions. [2024-10-11 03:42:17,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:42:17,189 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-11 03:42:17,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:17,377 INFO L225 Difference]: With dead ends: 148554 [2024-10-11 03:42:17,377 INFO L226 Difference]: Without dead ends: 125739 [2024-10-11 03:42:17,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:42:17,430 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1767 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1767 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:17,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1767 Valid, 466 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:42:17,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125739 states. [2024-10-11 03:42:18,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125739 to 47093. [2024-10-11 03:42:18,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47093 states, 47092 states have (on average 1.3897052577932558) internal successors, (65444), 47092 states have internal predecessors, (65444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:18,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47093 states to 47093 states and 65444 transitions. [2024-10-11 03:42:18,973 INFO L78 Accepts]: Start accepts. Automaton has 47093 states and 65444 transitions. Word has length 74 [2024-10-11 03:42:18,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:18,974 INFO L471 AbstractCegarLoop]: Abstraction has 47093 states and 65444 transitions. [2024-10-11 03:42:18,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:18,974 INFO L276 IsEmpty]: Start isEmpty. Operand 47093 states and 65444 transitions. [2024-10-11 03:42:18,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 03:42:18,982 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:18,982 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:18,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 03:42:18,983 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:18,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:18,983 INFO L85 PathProgramCache]: Analyzing trace with hash -331835791, now seen corresponding path program 1 times [2024-10-11 03:42:18,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:18,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443948578] [2024-10-11 03:42:18,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:18,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:19,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:19,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:19,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443948578] [2024-10-11 03:42:19,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443948578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:19,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:19,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:19,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86813024] [2024-10-11 03:42:19,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:19,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:42:19,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:19,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:42:19,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:42:19,122 INFO L87 Difference]: Start difference. First operand 47093 states and 65444 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:19,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:19,914 INFO L93 Difference]: Finished difference Result 139221 states and 191745 transitions. [2024-10-11 03:42:19,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:42:19,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-11 03:42:19,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:20,096 INFO L225 Difference]: With dead ends: 139221 [2024-10-11 03:42:20,096 INFO L226 Difference]: Without dead ends: 121938 [2024-10-11 03:42:20,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:42:20,145 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1537 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:20,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 471 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:42:20,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121938 states. [2024-10-11 03:42:21,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121938 to 47289. [2024-10-11 03:42:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47289 states, 47288 states have (on average 1.3892742344780917) internal successors, (65696), 47288 states have internal predecessors, (65696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:21,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47289 states to 47289 states and 65696 transitions. [2024-10-11 03:42:21,789 INFO L78 Accepts]: Start accepts. Automaton has 47289 states and 65696 transitions. Word has length 74 [2024-10-11 03:42:21,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:21,789 INFO L471 AbstractCegarLoop]: Abstraction has 47289 states and 65696 transitions. [2024-10-11 03:42:21,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:21,789 INFO L276 IsEmpty]: Start isEmpty. Operand 47289 states and 65696 transitions. [2024-10-11 03:42:22,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 03:42:22,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:22,167 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:22,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 03:42:22,167 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:22,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:22,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1896213327, now seen corresponding path program 1 times [2024-10-11 03:42:22,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:22,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866475203] [2024-10-11 03:42:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:22,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:22,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:22,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866475203] [2024-10-11 03:42:22,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866475203] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:22,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:22,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:22,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138367069] [2024-10-11 03:42:22,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:22,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:42:22,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:22,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:42:22,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:42:22,303 INFO L87 Difference]: Start difference. First operand 47289 states and 65696 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:22,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:22,890 INFO L93 Difference]: Finished difference Result 118005 states and 162260 transitions. [2024-10-11 03:42:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:42:22,891 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-11 03:42:22,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:23,004 INFO L225 Difference]: With dead ends: 118005 [2024-10-11 03:42:23,004 INFO L226 Difference]: Without dead ends: 90412 [2024-10-11 03:42:23,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:42:23,050 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1255 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:23,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 392 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:42:23,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90412 states. [2024-10-11 03:42:24,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90412 to 47339. [2024-10-11 03:42:24,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47339 states, 47338 states have (on average 1.3890743166166717) internal successors, (65756), 47338 states have internal predecessors, (65756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:24,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47339 states to 47339 states and 65756 transitions. [2024-10-11 03:42:24,131 INFO L78 Accepts]: Start accepts. Automaton has 47339 states and 65756 transitions. Word has length 74 [2024-10-11 03:42:24,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:24,132 INFO L471 AbstractCegarLoop]: Abstraction has 47339 states and 65756 transitions. [2024-10-11 03:42:24,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:24,132 INFO L276 IsEmpty]: Start isEmpty. Operand 47339 states and 65756 transitions. [2024-10-11 03:42:24,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 03:42:24,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:24,138 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:24,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 03:42:24,138 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:24,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:24,139 INFO L85 PathProgramCache]: Analyzing trace with hash -97924719, now seen corresponding path program 1 times [2024-10-11 03:42:24,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:24,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277611932] [2024-10-11 03:42:24,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:24,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:24,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:24,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:24,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277611932] [2024-10-11 03:42:24,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277611932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:24,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:24,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:24,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636897831] [2024-10-11 03:42:24,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:24,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:42:24,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:24,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:42:24,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:42:24,273 INFO L87 Difference]: Start difference. First operand 47339 states and 65756 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:24,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:24,954 INFO L93 Difference]: Finished difference Result 112109 states and 153792 transitions. [2024-10-11 03:42:24,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:42:24,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-11 03:42:24,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:25,109 INFO L225 Difference]: With dead ends: 112109 [2024-10-11 03:42:25,109 INFO L226 Difference]: Without dead ends: 103198 [2024-10-11 03:42:25,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:42:25,149 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1458 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:25,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 438 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:42:25,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103198 states. [2024-10-11 03:42:26,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103198 to 47721. [2024-10-11 03:42:26,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47721 states, 47720 states have (on average 1.387782900251467) internal successors, (66225), 47720 states have internal predecessors, (66225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:26,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47721 states to 47721 states and 66225 transitions. [2024-10-11 03:42:26,287 INFO L78 Accepts]: Start accepts. Automaton has 47721 states and 66225 transitions. Word has length 74 [2024-10-11 03:42:26,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:26,287 INFO L471 AbstractCegarLoop]: Abstraction has 47721 states and 66225 transitions. [2024-10-11 03:42:26,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:26,287 INFO L276 IsEmpty]: Start isEmpty. Operand 47721 states and 66225 transitions. [2024-10-11 03:42:26,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 03:42:26,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:26,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:26,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 03:42:26,296 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:26,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:26,297 INFO L85 PathProgramCache]: Analyzing trace with hash 547595205, now seen corresponding path program 1 times [2024-10-11 03:42:26,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:26,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162277466] [2024-10-11 03:42:26,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:26,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:27,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:27,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:27,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162277466] [2024-10-11 03:42:27,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162277466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:27,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:27,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:42:27,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390212293] [2024-10-11 03:42:27,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:27,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:42:27,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:27,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:42:27,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:42:27,045 INFO L87 Difference]: Start difference. First operand 47721 states and 66225 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:27,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:27,901 INFO L93 Difference]: Finished difference Result 82378 states and 113805 transitions. [2024-10-11 03:42:27,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 03:42:27,901 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-11 03:42:27,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:28,009 INFO L225 Difference]: With dead ends: 82378 [2024-10-11 03:42:28,009 INFO L226 Difference]: Without dead ends: 69745 [2024-10-11 03:42:28,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-11 03:42:28,044 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 946 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:28,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 754 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:42:28,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69745 states. [2024-10-11 03:42:29,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69745 to 47428. [2024-10-11 03:42:29,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47428 states, 47427 states have (on average 1.3875851308326481) internal successors, (65809), 47427 states have internal predecessors, (65809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47428 states to 47428 states and 65809 transitions. [2024-10-11 03:42:29,279 INFO L78 Accepts]: Start accepts. Automaton has 47428 states and 65809 transitions. Word has length 76 [2024-10-11 03:42:29,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:29,279 INFO L471 AbstractCegarLoop]: Abstraction has 47428 states and 65809 transitions. [2024-10-11 03:42:29,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 47428 states and 65809 transitions. [2024-10-11 03:42:29,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 03:42:29,286 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:29,286 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:29,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 03:42:29,287 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:29,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:29,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1053820475, now seen corresponding path program 1 times [2024-10-11 03:42:29,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:29,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097952865] [2024-10-11 03:42:29,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:29,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:29,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:29,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097952865] [2024-10-11 03:42:29,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097952865] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:29,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:29,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:42:29,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896131916] [2024-10-11 03:42:29,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:29,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:42:29,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:29,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:42:29,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:42:29,660 INFO L87 Difference]: Start difference. First operand 47428 states and 65809 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:30,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:30,551 INFO L93 Difference]: Finished difference Result 119595 states and 165728 transitions. [2024-10-11 03:42:30,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:42:30,552 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-11 03:42:30,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:30,648 INFO L225 Difference]: With dead ends: 119595 [2024-10-11 03:42:30,648 INFO L226 Difference]: Without dead ends: 77994 [2024-10-11 03:42:30,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-11 03:42:30,693 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1114 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:30,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 788 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:42:30,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77994 states. [2024-10-11 03:42:31,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77994 to 47323. [2024-10-11 03:42:31,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47323 states, 47322 states have (on average 1.3869236296014538) internal successors, (65632), 47322 states have internal predecessors, (65632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:31,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47323 states to 47323 states and 65632 transitions. [2024-10-11 03:42:31,728 INFO L78 Accepts]: Start accepts. Automaton has 47323 states and 65632 transitions. Word has length 76 [2024-10-11 03:42:31,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:31,728 INFO L471 AbstractCegarLoop]: Abstraction has 47323 states and 65632 transitions. [2024-10-11 03:42:31,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:31,728 INFO L276 IsEmpty]: Start isEmpty. Operand 47323 states and 65632 transitions. [2024-10-11 03:42:31,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 03:42:31,736 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:31,736 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:31,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 03:42:31,737 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:31,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:31,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1056205913, now seen corresponding path program 1 times [2024-10-11 03:42:31,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:31,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856901092] [2024-10-11 03:42:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:31,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:32,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:32,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:32,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856901092] [2024-10-11 03:42:32,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856901092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:32,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:32,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:42:32,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159799643] [2024-10-11 03:42:32,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:32,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:42:32,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:32,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:42:32,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:42:32,090 INFO L87 Difference]: Start difference. First operand 47323 states and 65632 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:32,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:32,983 INFO L93 Difference]: Finished difference Result 104011 states and 144090 transitions. [2024-10-11 03:42:32,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 03:42:32,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-11 03:42:32,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:33,093 INFO L225 Difference]: With dead ends: 104011 [2024-10-11 03:42:33,093 INFO L226 Difference]: Without dead ends: 74268 [2024-10-11 03:42:33,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:42:33,572 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 740 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:33,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 1023 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 03:42:33,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74268 states. [2024-10-11 03:42:34,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74268 to 47282. [2024-10-11 03:42:34,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47282 states, 47281 states have (on average 1.3856940420041877) internal successors, (65517), 47281 states have internal predecessors, (65517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:34,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47282 states to 47282 states and 65517 transitions. [2024-10-11 03:42:34,212 INFO L78 Accepts]: Start accepts. Automaton has 47282 states and 65517 transitions. Word has length 76 [2024-10-11 03:42:34,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:34,213 INFO L471 AbstractCegarLoop]: Abstraction has 47282 states and 65517 transitions. [2024-10-11 03:42:34,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:34,213 INFO L276 IsEmpty]: Start isEmpty. Operand 47282 states and 65517 transitions. [2024-10-11 03:42:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 03:42:34,218 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:34,218 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:34,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 03:42:34,219 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:34,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:34,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1555686085, now seen corresponding path program 1 times [2024-10-11 03:42:34,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:34,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724895702] [2024-10-11 03:42:34,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:34,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:34,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:34,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:34,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724895702] [2024-10-11 03:42:34,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724895702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:34,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:34,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:42:34,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950814696] [2024-10-11 03:42:34,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:34,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:42:34,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:34,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:42:34,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:42:34,581 INFO L87 Difference]: Start difference. First operand 47282 states and 65517 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:35,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:35,874 INFO L93 Difference]: Finished difference Result 123215 states and 170494 transitions. [2024-10-11 03:42:35,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 03:42:35,874 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-11 03:42:35,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:35,986 INFO L225 Difference]: With dead ends: 123215 [2024-10-11 03:42:35,986 INFO L226 Difference]: Without dead ends: 77382 [2024-10-11 03:42:36,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:42:36,037 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 756 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:36,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 1091 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 03:42:36,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77382 states. [2024-10-11 03:42:36,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77382 to 46924. [2024-10-11 03:42:36,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46924 states, 46923 states have (on average 1.3856104682138823) internal successors, (65017), 46923 states have internal predecessors, (65017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:37,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46924 states to 46924 states and 65017 transitions. [2024-10-11 03:42:37,375 INFO L78 Accepts]: Start accepts. Automaton has 46924 states and 65017 transitions. Word has length 76 [2024-10-11 03:42:37,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:37,376 INFO L471 AbstractCegarLoop]: Abstraction has 46924 states and 65017 transitions. [2024-10-11 03:42:37,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:37,376 INFO L276 IsEmpty]: Start isEmpty. Operand 46924 states and 65017 transitions. [2024-10-11 03:42:37,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:42:37,380 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:37,380 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:37,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 03:42:37,381 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:37,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:37,381 INFO L85 PathProgramCache]: Analyzing trace with hash 32988097, now seen corresponding path program 1 times [2024-10-11 03:42:37,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:37,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190556798] [2024-10-11 03:42:37,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:37,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:38,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:38,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:38,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190556798] [2024-10-11 03:42:38,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190556798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:38,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:38,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 03:42:38,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856588166] [2024-10-11 03:42:38,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:38,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:42:38,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:38,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:42:38,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:42:38,074 INFO L87 Difference]: Start difference. First operand 46924 states and 65017 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:39,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:39,009 INFO L93 Difference]: Finished difference Result 86156 states and 119411 transitions. [2024-10-11 03:42:39,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:42:39,009 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-11 03:42:39,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:39,118 INFO L225 Difference]: With dead ends: 86156 [2024-10-11 03:42:39,118 INFO L226 Difference]: Without dead ends: 80160 [2024-10-11 03:42:39,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:42:39,155 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 1337 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:39,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 2174 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:42:39,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80160 states. [2024-10-11 03:42:40,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80160 to 46937. [2024-10-11 03:42:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46937 states, 46936 states have (on average 1.385354525311062) internal successors, (65023), 46936 states have internal predecessors, (65023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:40,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46937 states to 46937 states and 65023 transitions. [2024-10-11 03:42:40,144 INFO L78 Accepts]: Start accepts. Automaton has 46937 states and 65023 transitions. Word has length 77 [2024-10-11 03:42:40,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:40,145 INFO L471 AbstractCegarLoop]: Abstraction has 46937 states and 65023 transitions. [2024-10-11 03:42:40,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:40,145 INFO L276 IsEmpty]: Start isEmpty. Operand 46937 states and 65023 transitions. [2024-10-11 03:42:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:42:40,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:40,150 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:40,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 03:42:40,151 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:40,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:40,151 INFO L85 PathProgramCache]: Analyzing trace with hash -922993607, now seen corresponding path program 1 times [2024-10-11 03:42:40,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:40,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84635206] [2024-10-11 03:42:40,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:40,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:40,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:40,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:40,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84635206] [2024-10-11 03:42:40,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84635206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:40,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:40,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 03:42:40,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458088578] [2024-10-11 03:42:40,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:40,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:42:40,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:40,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:42:40,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:42:40,785 INFO L87 Difference]: Start difference. First operand 46937 states and 65023 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:41,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:41,986 INFO L93 Difference]: Finished difference Result 108799 states and 150998 transitions. [2024-10-11 03:42:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:42:41,987 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-11 03:42:41,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:42,102 INFO L225 Difference]: With dead ends: 108799 [2024-10-11 03:42:42,102 INFO L226 Difference]: Without dead ends: 88984 [2024-10-11 03:42:42,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:42:42,124 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 1538 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:42,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 1684 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:42:42,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88984 states. [2024-10-11 03:42:42,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88984 to 46840. [2024-10-11 03:42:42,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46840 states, 46839 states have (on average 1.3856615213817545) internal successors, (64903), 46839 states have internal predecessors, (64903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:42,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46840 states to 46840 states and 64903 transitions. [2024-10-11 03:42:42,857 INFO L78 Accepts]: Start accepts. Automaton has 46840 states and 64903 transitions. Word has length 77 [2024-10-11 03:42:42,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:42,857 INFO L471 AbstractCegarLoop]: Abstraction has 46840 states and 64903 transitions. [2024-10-11 03:42:42,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:42,858 INFO L276 IsEmpty]: Start isEmpty. Operand 46840 states and 64903 transitions. [2024-10-11 03:42:42,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 03:42:42,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:42,862 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:42,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 03:42:42,862 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:42,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:42,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1122440523, now seen corresponding path program 1 times [2024-10-11 03:42:42,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:42,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935702781] [2024-10-11 03:42:42,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:42,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:42,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:42,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935702781] [2024-10-11 03:42:42,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935702781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:42,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:42,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:42,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805168005] [2024-10-11 03:42:42,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:42,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:42,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:42,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:42,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:42,914 INFO L87 Difference]: Start difference. First operand 46840 states and 64903 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:43,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:43,678 INFO L93 Difference]: Finished difference Result 102513 states and 142286 transitions. [2024-10-11 03:42:43,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:43,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-10-11 03:42:43,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:43,819 INFO L225 Difference]: With dead ends: 102513 [2024-10-11 03:42:43,819 INFO L226 Difference]: Without dead ends: 74168 [2024-10-11 03:42:43,857 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 [2024-10-11 03:42:43,859 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 198 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:43,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 381 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:43,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74168 states. [2024-10-11 03:42:44,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74168 to 74022. [2024-10-11 03:42:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74022 states, 74021 states have (on average 1.3870928520284784) internal successors, (102674), 74021 states have internal predecessors, (102674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:45,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74022 states to 74022 states and 102674 transitions. [2024-10-11 03:42:45,453 INFO L78 Accepts]: Start accepts. Automaton has 74022 states and 102674 transitions. Word has length 78 [2024-10-11 03:42:45,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:45,454 INFO L471 AbstractCegarLoop]: Abstraction has 74022 states and 102674 transitions. [2024-10-11 03:42:45,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:45,454 INFO L276 IsEmpty]: Start isEmpty. Operand 74022 states and 102674 transitions. [2024-10-11 03:42:45,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 03:42:45,458 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:45,458 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:45,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 03:42:45,458 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:45,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:45,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1767675661, now seen corresponding path program 1 times [2024-10-11 03:42:45,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:45,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010834253] [2024-10-11 03:42:45,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:45,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:45,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:45,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:45,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010834253] [2024-10-11 03:42:45,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010834253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:45,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:45,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:45,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261497419] [2024-10-11 03:42:45,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:45,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:45,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:45,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:45,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:45,550 INFO L87 Difference]: Start difference. First operand 74022 states and 102674 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:46,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:46,071 INFO L93 Difference]: Finished difference Result 157853 states and 218970 transitions. [2024-10-11 03:42:46,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:46,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-10-11 03:42:46,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:46,236 INFO L225 Difference]: With dead ends: 157853 [2024-10-11 03:42:46,236 INFO L226 Difference]: Without dead ends: 108387 [2024-10-11 03:42:46,296 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 [2024-10-11 03:42:46,296 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 182 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:46,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 419 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:46,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108387 states. [2024-10-11 03:42:47,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108387 to 108005. [2024-10-11 03:42:47,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108005 states, 108004 states have (on average 1.3898281545127957) internal successors, (150107), 108004 states have internal predecessors, (150107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:47,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108005 states to 108005 states and 150107 transitions. [2024-10-11 03:42:47,895 INFO L78 Accepts]: Start accepts. Automaton has 108005 states and 150107 transitions. Word has length 78 [2024-10-11 03:42:47,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:47,896 INFO L471 AbstractCegarLoop]: Abstraction has 108005 states and 150107 transitions. [2024-10-11 03:42:47,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:47,896 INFO L276 IsEmpty]: Start isEmpty. Operand 108005 states and 150107 transitions. [2024-10-11 03:42:47,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 03:42:47,902 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:47,903 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:47,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-11 03:42:47,903 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:47,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:47,903 INFO L85 PathProgramCache]: Analyzing trace with hash 237474817, now seen corresponding path program 1 times [2024-10-11 03:42:47,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:47,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754124640] [2024-10-11 03:42:47,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:47,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:47,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:47,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:47,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754124640] [2024-10-11 03:42:47,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754124640] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:47,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:47,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:47,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666511060] [2024-10-11 03:42:47,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:47,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:47,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:47,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:47,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:47,956 INFO L87 Difference]: Start difference. First operand 108005 states and 150107 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:49,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:49,235 INFO L93 Difference]: Finished difference Result 211282 states and 293939 transitions. [2024-10-11 03:42:49,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:49,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-11 03:42:49,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:49,489 INFO L225 Difference]: With dead ends: 211282 [2024-10-11 03:42:49,489 INFO L226 Difference]: Without dead ends: 144077 [2024-10-11 03:42:49,542 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 [2024-10-11 03:42:49,543 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 171 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:49,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 354 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:49,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144077 states. [2024-10-11 03:42:51,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144077 to 92318. [2024-10-11 03:42:51,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92318 states, 92317 states have (on average 1.3930370354322605) internal successors, (128601), 92317 states have internal predecessors, (128601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:51,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92318 states to 92318 states and 128601 transitions. [2024-10-11 03:42:51,488 INFO L78 Accepts]: Start accepts. Automaton has 92318 states and 128601 transitions. Word has length 81 [2024-10-11 03:42:51,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:51,488 INFO L471 AbstractCegarLoop]: Abstraction has 92318 states and 128601 transitions. [2024-10-11 03:42:51,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:51,488 INFO L276 IsEmpty]: Start isEmpty. Operand 92318 states and 128601 transitions. [2024-10-11 03:42:51,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 03:42:51,493 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:51,493 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:51,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-11 03:42:51,494 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:51,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:51,494 INFO L85 PathProgramCache]: Analyzing trace with hash 356146503, now seen corresponding path program 1 times [2024-10-11 03:42:51,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:51,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310707985] [2024-10-11 03:42:51,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:51,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:51,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:51,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:51,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310707985] [2024-10-11 03:42:51,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310707985] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:51,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:51,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:51,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599329455] [2024-10-11 03:42:51,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:51,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:51,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:51,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:51,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:51,550 INFO L87 Difference]: Start difference. First operand 92318 states and 128601 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:52,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:52,490 INFO L93 Difference]: Finished difference Result 135817 states and 188720 transitions. [2024-10-11 03:42:52,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:52,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-11 03:42:52,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:52,636 INFO L225 Difference]: With dead ends: 135817 [2024-10-11 03:42:52,636 INFO L226 Difference]: Without dead ends: 81553 [2024-10-11 03:42:52,650 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 [2024-10-11 03:42:52,651 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 146 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:52,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 507 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:52,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81553 states. [2024-10-11 03:42:53,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81553 to 81551. [2024-10-11 03:42:53,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81551 states, 81550 states have (on average 1.3775475168608216) internal successors, (112339), 81550 states have internal predecessors, (112339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:54,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81551 states to 81551 states and 112339 transitions. [2024-10-11 03:42:54,082 INFO L78 Accepts]: Start accepts. Automaton has 81551 states and 112339 transitions. Word has length 81 [2024-10-11 03:42:54,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:54,083 INFO L471 AbstractCegarLoop]: Abstraction has 81551 states and 112339 transitions. [2024-10-11 03:42:54,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:54,083 INFO L276 IsEmpty]: Start isEmpty. Operand 81551 states and 112339 transitions. [2024-10-11 03:42:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 03:42:54,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:54,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:54,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-11 03:42:54,088 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:54,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:54,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1696216112, now seen corresponding path program 1 times [2024-10-11 03:42:54,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:54,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91004984] [2024-10-11 03:42:54,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:54,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:54,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:54,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:54,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91004984] [2024-10-11 03:42:54,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91004984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:54,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:54,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 03:42:54,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684883959] [2024-10-11 03:42:54,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:54,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:42:54,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:54,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:42:54,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:42:54,668 INFO L87 Difference]: Start difference. First operand 81551 states and 112339 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:55,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:55,633 INFO L93 Difference]: Finished difference Result 148096 states and 203476 transitions. [2024-10-11 03:42:55,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:42:55,633 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-10-11 03:42:55,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:55,862 INFO L225 Difference]: With dead ends: 148096 [2024-10-11 03:42:55,862 INFO L226 Difference]: Without dead ends: 136529 [2024-10-11 03:42:55,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:42:55,919 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 1810 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:55,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 1946 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:42:56,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136529 states. [2024-10-11 03:42:57,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136529 to 80381. [2024-10-11 03:42:57,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80381 states, 80380 states have (on average 1.3780791241602388) internal successors, (110770), 80380 states have internal predecessors, (110770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80381 states to 80381 states and 110770 transitions. [2024-10-11 03:42:57,966 INFO L78 Accepts]: Start accepts. Automaton has 80381 states and 110770 transitions. Word has length 82 [2024-10-11 03:42:57,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:57,967 INFO L471 AbstractCegarLoop]: Abstraction has 80381 states and 110770 transitions. [2024-10-11 03:42:57,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:57,967 INFO L276 IsEmpty]: Start isEmpty. Operand 80381 states and 110770 transitions. [2024-10-11 03:42:57,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-11 03:42:57,982 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:57,982 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:42:57,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-11 03:42:57,983 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:57,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:57,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1368312261, now seen corresponding path program 1 times [2024-10-11 03:42:57,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:57,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938397690] [2024-10-11 03:42:57,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:57,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:58,119 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:58,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:58,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938397690] [2024-10-11 03:42:58,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938397690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:58,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:58,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:58,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263076198] [2024-10-11 03:42:58,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:58,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:58,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:58,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:58,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:58,122 INFO L87 Difference]: Start difference. First operand 80381 states and 110770 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:42:58,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:58,717 INFO L93 Difference]: Finished difference Result 184252 states and 254895 transitions. [2024-10-11 03:42:58,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:58,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-10-11 03:42:58,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:58,888 INFO L225 Difference]: With dead ends: 184252 [2024-10-11 03:42:58,888 INFO L226 Difference]: Without dead ends: 131088 [2024-10-11 03:42:58,956 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 [2024-10-11 03:42:58,957 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 125 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:58,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 504 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:59,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131088 states.