./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.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/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.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 5cbdd74a230613e4bdaea53735767d2cb8a557f2fb27b4c6d6d20587e28e4a0f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:22:01,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:22:01,693 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:22:01,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:22:01,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:22:01,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:22:01,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:22:01,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:22:01,731 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:22:01,732 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:22:01,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:22:01,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:22:01,733 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:22:01,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:22:01,735 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:22:01,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:22:01,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:22:01,739 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:22:01,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:22:01,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:22:01,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:22:01,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:22:01,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:22:01,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:22:01,741 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:22:01,741 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:22:01,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:22:01,742 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:22:01,742 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:22:01,742 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:22:01,742 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:22:01,743 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:22:01,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:22:01,743 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:22:01,743 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:22:01,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:22:01,744 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:22:01,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:22:01,745 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:22:01,746 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:22:01,746 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:22:01,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:22:01,747 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cbdd74a230613e4bdaea53735767d2cb8a557f2fb27b4c6d6d20587e28e4a0f [2024-10-11 03:22:02,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:22:02,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:22:02,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:22:02,039 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:22:02,040 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:22:02,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c [2024-10-11 03:22:03,497 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:22:03,729 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:22:03,729 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c [2024-10-11 03:22:03,742 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c58e988f2/53d7e24885314c99a4fcf9277faabc29/FLAG34aa7c495 [2024-10-11 03:22:03,758 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c58e988f2/53d7e24885314c99a4fcf9277faabc29 [2024-10-11 03:22:03,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:22:03,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:22:03,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:22:03,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:22:03,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:22:03,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:22:03" (1/1) ... [2024-10-11 03:22:03,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bcb3c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:03, skipping insertion in model container [2024-10-11 03:22:03,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:22:03" (1/1) ... [2024-10-11 03:22:03,822 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:22:04,128 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c[16977,16990] [2024-10-11 03:22:04,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:22:04,152 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:22:04,264 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c[16977,16990] [2024-10-11 03:22:04,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:22:04,310 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:22:04,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04 WrapperNode [2024-10-11 03:22:04,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:22:04,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:22:04,313 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:22:04,313 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:22:04,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (1/1) ... [2024-10-11 03:22:04,329 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (1/1) ... [2024-10-11 03:22:04,367 INFO L138 Inliner]: procedures = 25, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 456 [2024-10-11 03:22:04,370 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:22:04,370 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:22:04,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:22:04,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:22:04,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (1/1) ... [2024-10-11 03:22:04,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (1/1) ... [2024-10-11 03:22:04,383 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (1/1) ... [2024-10-11 03:22:04,403 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 03:22:04,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (1/1) ... [2024-10-11 03:22:04,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (1/1) ... [2024-10-11 03:22:04,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (1/1) ... [2024-10-11 03:22:04,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (1/1) ... [2024-10-11 03:22:04,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (1/1) ... [2024-10-11 03:22:04,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (1/1) ... [2024-10-11 03:22:04,426 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:22:04,429 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:22:04,429 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:22:04,429 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:22:04,430 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (1/1) ... [2024-10-11 03:22:04,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:22:04,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:22:04,477 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 03:22:04,480 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 03:22:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:22:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:22:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:22:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:22:04,652 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:22:04,655 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:22:05,167 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-10-11 03:22:05,167 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:22:05,230 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:22:05,230 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 03:22:05,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:22:05 BoogieIcfgContainer [2024-10-11 03:22:05,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:22:05,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:22:05,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:22:05,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:22:05,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:22:03" (1/3) ... [2024-10-11 03:22:05,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b03beaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:22:05, skipping insertion in model container [2024-10-11 03:22:05,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:04" (2/3) ... [2024-10-11 03:22:05,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b03beaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:22:05, skipping insertion in model container [2024-10-11 03:22:05,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:22:05" (3/3) ... [2024-10-11 03:22:05,238 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c [2024-10-11 03:22:05,253 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:22:05,254 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:22:05,311 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:22:05,317 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;@6342930d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:22:05,317 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:22:05,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 114 states have (on average 1.7982456140350878) internal successors, (205), 115 states have internal predecessors, (205), 0 states have call successors, (0), 0 states 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 03:22:05,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 03:22:05,331 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:05,332 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:22:05,333 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:05,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:05,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1951872268, now seen corresponding path program 1 times [2024-10-11 03:22:05,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:05,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714314555] [2024-10-11 03:22:05,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:05,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:05,815 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 03:22:05,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:05,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714314555] [2024-10-11 03:22:05,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714314555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:05,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:05,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:22:05,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945750537] [2024-10-11 03:22:05,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:05,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:22:05,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:05,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:22:05,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:22:05,846 INFO L87 Difference]: Start difference. First operand has 116 states, 114 states have (on average 1.7982456140350878) internal successors, (205), 115 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:05,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:05,975 INFO L93 Difference]: Finished difference Result 190 states and 327 transitions. [2024-10-11 03:22:05,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:22:05,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-10-11 03:22:05,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:05,986 INFO L225 Difference]: With dead ends: 190 [2024-10-11 03:22:05,986 INFO L226 Difference]: Without dead ends: 114 [2024-10-11 03:22:05,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:22:05,991 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 0 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:05,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 550 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:22:06,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-11 03:22:06,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-10-11 03:22:06,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.407079646017699) internal successors, (159), 113 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:06,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2024-10-11 03:22:06,023 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 34 [2024-10-11 03:22:06,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:06,024 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2024-10-11 03:22:06,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:06,024 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2024-10-11 03:22:06,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 03:22:06,026 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:06,027 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 03:22:06,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:22:06,027 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:06,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:06,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1418311254, now seen corresponding path program 1 times [2024-10-11 03:22:06,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:06,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999928530] [2024-10-11 03:22:06,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:06,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:06,218 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 03:22:06,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:06,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999928530] [2024-10-11 03:22:06,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999928530] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:06,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:06,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:06,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049424844] [2024-10-11 03:22:06,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:06,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:06,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:06,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:06,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:06,228 INFO L87 Difference]: Start difference. First operand 114 states and 159 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 03:22:06,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:06,283 INFO L93 Difference]: Finished difference Result 244 states and 373 transitions. [2024-10-11 03:22:06,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:06,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 03:22:06,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:06,286 INFO L225 Difference]: With dead ends: 244 [2024-10-11 03:22:06,286 INFO L226 Difference]: Without dead ends: 175 [2024-10-11 03:22:06,286 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 03:22:06,289 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 90 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:06,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 322 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:06,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-11 03:22:06,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2024-10-11 03:22:06,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 1.494186046511628) internal successors, (257), 172 states have internal predecessors, (257), 0 states have call successors, (0), 0 states 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 03:22:06,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 257 transitions. [2024-10-11 03:22:06,315 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 257 transitions. Word has length 74 [2024-10-11 03:22:06,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:06,316 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 257 transitions. [2024-10-11 03:22:06,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 03:22:06,316 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 257 transitions. [2024-10-11 03:22:06,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 03:22:06,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:06,318 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 03:22:06,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:22:06,318 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:06,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:06,320 INFO L85 PathProgramCache]: Analyzing trace with hash 209399157, now seen corresponding path program 1 times [2024-10-11 03:22:06,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:06,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396422384] [2024-10-11 03:22:06,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:06,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:06,655 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 03:22:06,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:06,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396422384] [2024-10-11 03:22:06,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396422384] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:06,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:06,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:22:06,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487212903] [2024-10-11 03:22:06,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:06,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 03:22:06,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:06,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 03:22:06,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:22:06,661 INFO L87 Difference]: Start difference. First operand 173 states and 257 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 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 03:22:06,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:06,904 INFO L93 Difference]: Finished difference Result 1069 states and 1741 transitions. [2024-10-11 03:22:06,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:22:06,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 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 03:22:06,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:06,912 INFO L225 Difference]: With dead ends: 1069 [2024-10-11 03:22:06,912 INFO L226 Difference]: Without dead ends: 941 [2024-10-11 03:22:06,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:22:06,915 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 2006 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:06,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2006 Valid, 1159 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:22:06,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-10-11 03:22:06,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 299. [2024-10-11 03:22:06,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.5570469798657718) internal successors, (464), 298 states have internal predecessors, (464), 0 states have call successors, (0), 0 states 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 03:22:06,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 464 transitions. [2024-10-11 03:22:06,968 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 464 transitions. Word has length 74 [2024-10-11 03:22:06,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:06,968 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 464 transitions. [2024-10-11 03:22:06,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 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 03:22:06,969 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 464 transitions. [2024-10-11 03:22:06,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-11 03:22:06,970 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:06,970 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] [2024-10-11 03:22:06,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:22:06,971 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:06,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:06,973 INFO L85 PathProgramCache]: Analyzing trace with hash -2111620221, now seen corresponding path program 1 times [2024-10-11 03:22:06,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:06,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718289182] [2024-10-11 03:22:06,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:06,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:07,312 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 03:22:07,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:07,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718289182] [2024-10-11 03:22:07,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718289182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:07,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:07,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:22:07,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31783771] [2024-10-11 03:22:07,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:07,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:22:07,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:07,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:22:07,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:22:07,315 INFO L87 Difference]: Start difference. First operand 299 states and 464 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 03:22:07,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:07,345 INFO L93 Difference]: Finished difference Result 309 states and 477 transitions. [2024-10-11 03:22:07,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:22:07,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-10-11 03:22:07,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:07,347 INFO L225 Difference]: With dead ends: 309 [2024-10-11 03:22:07,347 INFO L226 Difference]: Without dead ends: 307 [2024-10-11 03:22:07,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:22:07,349 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:07,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 458 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:07,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-10-11 03:22:07,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2024-10-11 03:22:07,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.542483660130719) internal successors, (472), 306 states have internal predecessors, (472), 0 states have call successors, (0), 0 states 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 03:22:07,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 472 transitions. [2024-10-11 03:22:07,371 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 472 transitions. Word has length 75 [2024-10-11 03:22:07,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:07,372 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 472 transitions. [2024-10-11 03:22:07,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 03:22:07,372 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 472 transitions. [2024-10-11 03:22:07,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 03:22:07,374 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:07,374 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 03:22:07,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:22:07,374 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:07,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:07,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1034715555, now seen corresponding path program 1 times [2024-10-11 03:22:07,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:07,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611365427] [2024-10-11 03:22:07,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:07,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:07,488 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 03:22:07,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:07,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611365427] [2024-10-11 03:22:07,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611365427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:07,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:07,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:07,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829267943] [2024-10-11 03:22:07,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:07,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:07,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:07,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:07,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:07,491 INFO L87 Difference]: Start difference. First operand 307 states and 472 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 03:22:07,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:07,524 INFO L93 Difference]: Finished difference Result 803 states and 1278 transitions. [2024-10-11 03:22:07,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:07,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 03:22:07,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:07,527 INFO L225 Difference]: With dead ends: 803 [2024-10-11 03:22:07,527 INFO L226 Difference]: Without dead ends: 541 [2024-10-11 03:22:07,531 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 03:22:07,532 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 75 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:07,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 266 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:07,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-10-11 03:22:07,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 539. [2024-10-11 03:22:07,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 538 states have (on average 1.5724907063197027) internal successors, (846), 538 states have internal predecessors, (846), 0 states have call successors, (0), 0 states 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 03:22:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 846 transitions. [2024-10-11 03:22:07,558 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 846 transitions. Word has length 76 [2024-10-11 03:22:07,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:07,560 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 846 transitions. [2024-10-11 03:22:07,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 03:22:07,560 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 846 transitions. [2024-10-11 03:22:07,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 03:22:07,562 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:07,563 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 03:22:07,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:22:07,563 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:07,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:07,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1680632190, now seen corresponding path program 1 times [2024-10-11 03:22:07,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:07,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024458567] [2024-10-11 03:22:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:07,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:07,652 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 03:22:07,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:07,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024458567] [2024-10-11 03:22:07,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024458567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:07,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:07,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:07,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737623352] [2024-10-11 03:22:07,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:07,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:07,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:07,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:07,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:07,654 INFO L87 Difference]: Start difference. First operand 539 states and 846 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 03:22:07,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:07,689 INFO L93 Difference]: Finished difference Result 1033 states and 1647 transitions. [2024-10-11 03:22:07,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:07,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 03:22:07,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:07,694 INFO L225 Difference]: With dead ends: 1033 [2024-10-11 03:22:07,694 INFO L226 Difference]: Without dead ends: 771 [2024-10-11 03:22:07,695 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 03:22:07,696 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 102 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:07,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 358 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:07,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-10-11 03:22:07,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 769. [2024-10-11 03:22:07,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 768 states have (on average 1.5807291666666667) internal successors, (1214), 768 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states 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 03:22:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1214 transitions. [2024-10-11 03:22:07,738 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1214 transitions. Word has length 76 [2024-10-11 03:22:07,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:07,738 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 1214 transitions. [2024-10-11 03:22:07,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 03:22:07,739 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1214 transitions. [2024-10-11 03:22:07,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:22:07,740 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:07,740 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 03:22:07,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:22:07,740 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:07,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:07,741 INFO L85 PathProgramCache]: Analyzing trace with hash -2045463766, now seen corresponding path program 1 times [2024-10-11 03:22:07,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:07,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608685019] [2024-10-11 03:22:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:07,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:07,818 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 03:22:07,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:07,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608685019] [2024-10-11 03:22:07,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608685019] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:07,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:07,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:07,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719353065] [2024-10-11 03:22:07,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:07,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:07,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:07,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:07,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:07,820 INFO L87 Difference]: Start difference. First operand 769 states and 1214 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 03:22:07,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:07,872 INFO L93 Difference]: Finished difference Result 2117 states and 3380 transitions. [2024-10-11 03:22:07,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:07,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 03:22:07,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:07,880 INFO L225 Difference]: With dead ends: 2117 [2024-10-11 03:22:07,881 INFO L226 Difference]: Without dead ends: 1395 [2024-10-11 03:22:07,883 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 03:22:07,885 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 82 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:07,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 316 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:07,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2024-10-11 03:22:07,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1393. [2024-10-11 03:22:07,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1392 states have (on average 1.5804597701149425) internal successors, (2200), 1392 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states 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 03:22:07,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 2200 transitions. [2024-10-11 03:22:07,932 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 2200 transitions. Word has length 77 [2024-10-11 03:22:07,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:07,933 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 2200 transitions. [2024-10-11 03:22:07,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 03:22:07,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 2200 transitions. [2024-10-11 03:22:07,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:22:07,934 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:07,934 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 03:22:07,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:22:07,934 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:07,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:07,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1775774794, now seen corresponding path program 1 times [2024-10-11 03:22:07,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:07,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792431088] [2024-10-11 03:22:07,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:07,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:08,016 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 03:22:08,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:08,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792431088] [2024-10-11 03:22:08,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792431088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:08,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:08,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:08,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302573796] [2024-10-11 03:22:08,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:08,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:08,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:08,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:08,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:08,021 INFO L87 Difference]: Start difference. First operand 1393 states and 2200 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 03:22:08,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:08,077 INFO L93 Difference]: Finished difference Result 3893 states and 6170 transitions. [2024-10-11 03:22:08,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:08,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 03:22:08,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:08,087 INFO L225 Difference]: With dead ends: 3893 [2024-10-11 03:22:08,088 INFO L226 Difference]: Without dead ends: 2547 [2024-10-11 03:22:08,090 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 03:22:08,092 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 86 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:08,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 329 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:08,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2024-10-11 03:22:08,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2545. [2024-10-11 03:22:08,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 2544 states have (on average 1.569182389937107) internal successors, (3992), 2544 states have internal predecessors, (3992), 0 states have call successors, (0), 0 states 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 03:22:08,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 3992 transitions. [2024-10-11 03:22:08,193 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 3992 transitions. Word has length 77 [2024-10-11 03:22:08,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:08,194 INFO L471 AbstractCegarLoop]: Abstraction has 2545 states and 3992 transitions. [2024-10-11 03:22:08,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 03:22:08,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 3992 transitions. [2024-10-11 03:22:08,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:22:08,196 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:08,197 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 03:22:08,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:22:08,197 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:08,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:08,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1329434998, now seen corresponding path program 1 times [2024-10-11 03:22:08,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:08,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204567943] [2024-10-11 03:22:08,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:08,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:08,267 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 03:22:08,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:08,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204567943] [2024-10-11 03:22:08,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204567943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:08,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:08,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:08,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773095148] [2024-10-11 03:22:08,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:08,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:08,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:08,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:08,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:08,270 INFO L87 Difference]: Start difference. First operand 2545 states and 3992 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 03:22:08,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:08,361 INFO L93 Difference]: Finished difference Result 7157 states and 11210 transitions. [2024-10-11 03:22:08,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:08,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 03:22:08,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:08,380 INFO L225 Difference]: With dead ends: 7157 [2024-10-11 03:22:08,380 INFO L226 Difference]: Without dead ends: 4659 [2024-10-11 03:22:08,387 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 03:22:08,388 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 94 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:08,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 345 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:08,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4659 states. [2024-10-11 03:22:08,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4659 to 4657. [2024-10-11 03:22:08,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4657 states, 4656 states have (on average 1.5498281786941581) internal successors, (7216), 4656 states have internal predecessors, (7216), 0 states have call successors, (0), 0 states 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 03:22:08,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4657 states to 4657 states and 7216 transitions. [2024-10-11 03:22:08,545 INFO L78 Accepts]: Start accepts. Automaton has 4657 states and 7216 transitions. Word has length 77 [2024-10-11 03:22:08,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:08,546 INFO L471 AbstractCegarLoop]: Abstraction has 4657 states and 7216 transitions. [2024-10-11 03:22:08,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 03:22:08,546 INFO L276 IsEmpty]: Start isEmpty. Operand 4657 states and 7216 transitions. [2024-10-11 03:22:08,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:22:08,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:08,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:08,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:22:08,548 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:08,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:08,548 INFO L85 PathProgramCache]: Analyzing trace with hash -965134422, now seen corresponding path program 1 times [2024-10-11 03:22:08,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:08,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586817040] [2024-10-11 03:22:08,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:08,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:08,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:08,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:08,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586817040] [2024-10-11 03:22:08,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586817040] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:08,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:08,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:08,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36343544] [2024-10-11 03:22:08,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:08,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:08,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:08,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:08,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:08,641 INFO L87 Difference]: Start difference. First operand 4657 states and 7216 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 03:22:08,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:08,784 INFO L93 Difference]: Finished difference Result 13109 states and 20210 transitions. [2024-10-11 03:22:08,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:08,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 03:22:08,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:08,817 INFO L225 Difference]: With dead ends: 13109 [2024-10-11 03:22:08,818 INFO L226 Difference]: Without dead ends: 8499 [2024-10-11 03:22:08,826 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 03:22:08,827 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 98 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:08,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 358 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:08,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8499 states. [2024-10-11 03:22:09,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8499 to 8497. [2024-10-11 03:22:09,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8497 states, 8496 states have (on average 1.5235404896421845) internal successors, (12944), 8496 states have internal predecessors, (12944), 0 states have call successors, (0), 0 states 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 03:22:09,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8497 states to 8497 states and 12944 transitions. [2024-10-11 03:22:09,171 INFO L78 Accepts]: Start accepts. Automaton has 8497 states and 12944 transitions. Word has length 77 [2024-10-11 03:22:09,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:09,171 INFO L471 AbstractCegarLoop]: Abstraction has 8497 states and 12944 transitions. [2024-10-11 03:22:09,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 03:22:09,172 INFO L276 IsEmpty]: Start isEmpty. Operand 8497 states and 12944 transitions. [2024-10-11 03:22:09,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-11 03:22:09,176 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:09,177 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:09,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:22:09,177 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:09,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:09,178 INFO L85 PathProgramCache]: Analyzing trace with hash -284094702, now seen corresponding path program 1 times [2024-10-11 03:22:09,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:09,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756347729] [2024-10-11 03:22:09,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:09,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:09,339 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:09,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:09,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756347729] [2024-10-11 03:22:09,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756347729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:09,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:09,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:09,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201774503] [2024-10-11 03:22:09,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:09,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:09,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:09,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:09,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:09,341 INFO L87 Difference]: Start difference. First operand 8497 states and 12944 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:09,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:09,541 INFO L93 Difference]: Finished difference Result 16949 states and 25842 transitions. [2024-10-11 03:22:09,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:09,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-10-11 03:22:09,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:09,591 INFO L225 Difference]: With dead ends: 16949 [2024-10-11 03:22:09,591 INFO L226 Difference]: Without dead ends: 8499 [2024-10-11 03:22:09,602 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 03:22:09,603 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 80 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:09,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 352 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:09,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8499 states. [2024-10-11 03:22:09,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8499 to 8497. [2024-10-11 03:22:09,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8497 states, 8496 states have (on average 1.512241054613936) internal successors, (12848), 8496 states have internal predecessors, (12848), 0 states have call successors, (0), 0 states 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 03:22:09,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8497 states to 8497 states and 12848 transitions. [2024-10-11 03:22:09,891 INFO L78 Accepts]: Start accepts. Automaton has 8497 states and 12848 transitions. Word has length 106 [2024-10-11 03:22:09,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:09,891 INFO L471 AbstractCegarLoop]: Abstraction has 8497 states and 12848 transitions. [2024-10-11 03:22:09,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:09,891 INFO L276 IsEmpty]: Start isEmpty. Operand 8497 states and 12848 transitions. [2024-10-11 03:22:09,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-11 03:22:09,894 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:09,894 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:22:09,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:22:09,895 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:09,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:09,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1503048371, now seen corresponding path program 1 times [2024-10-11 03:22:09,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:09,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174609283] [2024-10-11 03:22:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:09,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:10,026 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:10,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:10,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174609283] [2024-10-11 03:22:10,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174609283] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:10,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:10,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:10,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901425526] [2024-10-11 03:22:10,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:10,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:10,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:10,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:10,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:10,029 INFO L87 Difference]: Start difference. First operand 8497 states and 12848 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:10,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:10,206 INFO L93 Difference]: Finished difference Result 12725 states and 19250 transitions. [2024-10-11 03:22:10,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:10,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-10-11 03:22:10,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:10,216 INFO L225 Difference]: With dead ends: 12725 [2024-10-11 03:22:10,216 INFO L226 Difference]: Without dead ends: 4275 [2024-10-11 03:22:10,223 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 03:22:10,224 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 74 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:10,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 333 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2024-10-11 03:22:10,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 4273. [2024-10-11 03:22:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4273 states, 4272 states have (on average 1.4981273408239701) internal successors, (6400), 4272 states have internal predecessors, (6400), 0 states have call successors, (0), 0 states 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 03:22:10,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4273 states to 4273 states and 6400 transitions. [2024-10-11 03:22:10,337 INFO L78 Accepts]: Start accepts. Automaton has 4273 states and 6400 transitions. Word has length 106 [2024-10-11 03:22:10,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:10,337 INFO L471 AbstractCegarLoop]: Abstraction has 4273 states and 6400 transitions. [2024-10-11 03:22:10,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:10,337 INFO L276 IsEmpty]: Start isEmpty. Operand 4273 states and 6400 transitions. [2024-10-11 03:22:10,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-11 03:22:10,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:10,339 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:22:10,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:22:10,340 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:10,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:10,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1392947500, now seen corresponding path program 1 times [2024-10-11 03:22:10,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:10,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132223317] [2024-10-11 03:22:10,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:10,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:10,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:10,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132223317] [2024-10-11 03:22:10,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132223317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:10,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:10,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:10,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518048251] [2024-10-11 03:22:10,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:10,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:10,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:10,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:10,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:10,524 INFO L87 Difference]: Start difference. First operand 4273 states and 6400 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:10,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:10,602 INFO L93 Difference]: Finished difference Result 6389 states and 9578 transitions. [2024-10-11 03:22:10,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:10,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-10-11 03:22:10,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:10,608 INFO L225 Difference]: With dead ends: 6389 [2024-10-11 03:22:10,608 INFO L226 Difference]: Without dead ends: 2163 [2024-10-11 03:22:10,613 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 03:22:10,614 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 68 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:10,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 311 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:10,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2163 states. [2024-10-11 03:22:10,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2163 to 2161. [2024-10-11 03:22:10,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2160 states have (on average 1.4814814814814814) internal successors, (3200), 2160 states have internal predecessors, (3200), 0 states have call successors, (0), 0 states 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 03:22:10,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 3200 transitions. [2024-10-11 03:22:10,698 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 3200 transitions. Word has length 106 [2024-10-11 03:22:10,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:10,699 INFO L471 AbstractCegarLoop]: Abstraction has 2161 states and 3200 transitions. [2024-10-11 03:22:10,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:10,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 3200 transitions. [2024-10-11 03:22:10,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-11 03:22:10,701 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:10,701 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:22:10,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:22:10,702 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:10,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:10,703 INFO L85 PathProgramCache]: Analyzing trace with hash -886662155, now seen corresponding path program 1 times [2024-10-11 03:22:10,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:10,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393675183] [2024-10-11 03:22:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:10,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:10,867 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:10,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:10,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393675183] [2024-10-11 03:22:10,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393675183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:10,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:10,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:10,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114914417] [2024-10-11 03:22:10,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:10,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:10,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:10,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:10,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:10,870 INFO L87 Difference]: Start difference. First operand 2161 states and 3200 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:10,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:10,914 INFO L93 Difference]: Finished difference Result 3221 states and 4778 transitions. [2024-10-11 03:22:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:10,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-10-11 03:22:10,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:10,918 INFO L225 Difference]: With dead ends: 3221 [2024-10-11 03:22:10,918 INFO L226 Difference]: Without dead ends: 1107 [2024-10-11 03:22:10,921 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 03:22:10,922 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 62 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:10,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 292 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:10,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2024-10-11 03:22:10,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1105. [2024-10-11 03:22:10,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1104 states have (on average 1.460144927536232) internal successors, (1612), 1104 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states 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 03:22:10,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1612 transitions. [2024-10-11 03:22:10,959 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1612 transitions. Word has length 106 [2024-10-11 03:22:10,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:10,959 INFO L471 AbstractCegarLoop]: Abstraction has 1105 states and 1612 transitions. [2024-10-11 03:22:10,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:10,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1612 transitions. [2024-10-11 03:22:10,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-11 03:22:10,961 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:10,961 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:10,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:22:10,962 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:10,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:10,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1065460118, now seen corresponding path program 1 times [2024-10-11 03:22:10,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:10,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624613191] [2024-10-11 03:22:10,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:10,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:22:11,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:11,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624613191] [2024-10-11 03:22:11,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624613191] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:22:11,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253172655] [2024-10-11 03:22:11,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:11,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:22:11,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:22:11,229 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:22:11,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 03:22:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:11,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-11 03:22:11,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:22:12,267 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:12,267 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:22:13,254 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:13,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253172655] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:22:13,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:22:13,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 8] total 14 [2024-10-11 03:22:13,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875880198] [2024-10-11 03:22:13,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:22:13,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 03:22:13,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:13,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 03:22:13,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:22:13,258 INFO L87 Difference]: Start difference. First operand 1105 states and 1612 transitions. Second operand has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states 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 03:22:14,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:14,457 INFO L93 Difference]: Finished difference Result 5997 states and 8790 transitions. [2024-10-11 03:22:14,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-11 03:22:14,458 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 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 106 [2024-10-11 03:22:14,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:14,468 INFO L225 Difference]: With dead ends: 5997 [2024-10-11 03:22:14,468 INFO L226 Difference]: Without dead ends: 5275 [2024-10-11 03:22:14,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=425, Invalid=1297, Unknown=0, NotChecked=0, Total=1722 [2024-10-11 03:22:14,474 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1445 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:14,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 1664 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:22:14,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5275 states. [2024-10-11 03:22:14,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5275 to 4921. [2024-10-11 03:22:14,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4921 states, 4920 states have (on average 1.4520325203252034) internal successors, (7144), 4920 states have internal predecessors, (7144), 0 states have call successors, (0), 0 states 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 03:22:14,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4921 states to 4921 states and 7144 transitions. [2024-10-11 03:22:14,604 INFO L78 Accepts]: Start accepts. Automaton has 4921 states and 7144 transitions. Word has length 106 [2024-10-11 03:22:14,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:14,605 INFO L471 AbstractCegarLoop]: Abstraction has 4921 states and 7144 transitions. [2024-10-11 03:22:14,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states 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 03:22:14,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4921 states and 7144 transitions. [2024-10-11 03:22:14,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 03:22:14,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:14,606 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:14,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 03:22:14,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 03:22:14,808 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:14,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:14,808 INFO L85 PathProgramCache]: Analyzing trace with hash 266809497, now seen corresponding path program 1 times [2024-10-11 03:22:14,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:14,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445106166] [2024-10-11 03:22:14,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:14,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:22:15,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:15,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445106166] [2024-10-11 03:22:15,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445106166] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:15,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:15,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:22:15,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924372142] [2024-10-11 03:22:15,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:15,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 03:22:15,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:15,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 03:22:15,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:22:15,031 INFO L87 Difference]: Start difference. First operand 4921 states and 7144 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states 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 03:22:15,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:15,449 INFO L93 Difference]: Finished difference Result 19675 states and 28813 transitions. [2024-10-11 03:22:15,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:22:15,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 107 [2024-10-11 03:22:15,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:15,486 INFO L225 Difference]: With dead ends: 19675 [2024-10-11 03:22:15,486 INFO L226 Difference]: Without dead ends: 17173 [2024-10-11 03:22:15,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:22:15,497 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 1237 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:15,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 1404 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:22:15,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17173 states. [2024-10-11 03:22:15,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17173 to 7349. [2024-10-11 03:22:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7349 states, 7348 states have (on average 1.4491017964071857) internal successors, (10648), 7348 states have internal predecessors, (10648), 0 states have call successors, (0), 0 states 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 03:22:15,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7349 states to 7349 states and 10648 transitions. [2024-10-11 03:22:15,915 INFO L78 Accepts]: Start accepts. Automaton has 7349 states and 10648 transitions. Word has length 107 [2024-10-11 03:22:15,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:15,915 INFO L471 AbstractCegarLoop]: Abstraction has 7349 states and 10648 transitions. [2024-10-11 03:22:15,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states 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 03:22:15,916 INFO L276 IsEmpty]: Start isEmpty. Operand 7349 states and 10648 transitions. [2024-10-11 03:22:15,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 03:22:15,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:15,918 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:15,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 03:22:15,918 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:15,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:15,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1895745897, now seen corresponding path program 1 times [2024-10-11 03:22:15,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:15,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040341749] [2024-10-11 03:22:15,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:15,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:16,135 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 03:22:16,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:16,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040341749] [2024-10-11 03:22:16,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040341749] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:16,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:16,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:22:16,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522129299] [2024-10-11 03:22:16,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:16,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 03:22:16,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:16,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 03:22:16,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:22:16,138 INFO L87 Difference]: Start difference. First operand 7349 states and 10648 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states 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 03:22:16,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:16,658 INFO L93 Difference]: Finished difference Result 22103 states and 32317 transitions. [2024-10-11 03:22:16,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:22:16,658 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 107 [2024-10-11 03:22:16,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:16,698 INFO L225 Difference]: With dead ends: 22103 [2024-10-11 03:22:16,698 INFO L226 Difference]: Without dead ends: 19601 [2024-10-11 03:22:16,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:22:16,707 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 1319 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:16,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 1288 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:22:16,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19601 states. [2024-10-11 03:22:17,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19601 to 9777. [2024-10-11 03:22:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9777 states, 9776 states have (on average 1.4476268412438624) internal successors, (14152), 9776 states have internal predecessors, (14152), 0 states have call successors, (0), 0 states 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 03:22:17,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9777 states to 9777 states and 14152 transitions. [2024-10-11 03:22:17,076 INFO L78 Accepts]: Start accepts. Automaton has 9777 states and 14152 transitions. Word has length 107 [2024-10-11 03:22:17,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:17,077 INFO L471 AbstractCegarLoop]: Abstraction has 9777 states and 14152 transitions. [2024-10-11 03:22:17,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states 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 03:22:17,077 INFO L276 IsEmpty]: Start isEmpty. Operand 9777 states and 14152 transitions. [2024-10-11 03:22:17,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 03:22:17,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:17,079 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:17,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 03:22:17,079 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:17,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash 597289877, now seen corresponding path program 1 times [2024-10-11 03:22:17,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:17,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841811059] [2024-10-11 03:22:17,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:17,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 03:22:17,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:17,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841811059] [2024-10-11 03:22:17,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841811059] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:17,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:17,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:22:17,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380443035] [2024-10-11 03:22:17,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:17,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 03:22:17,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:17,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 03:22:17,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:22:17,320 INFO L87 Difference]: Start difference. First operand 9777 states and 14152 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states 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 03:22:17,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:17,906 INFO L93 Difference]: Finished difference Result 24531 states and 35821 transitions. [2024-10-11 03:22:17,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:22:17,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 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 107 [2024-10-11 03:22:17,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:17,993 INFO L225 Difference]: With dead ends: 24531 [2024-10-11 03:22:17,993 INFO L226 Difference]: Without dead ends: 22029 [2024-10-11 03:22:17,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:22:17,999 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 1408 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:18,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 1341 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:22:18,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22029 states. [2024-10-11 03:22:18,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22029 to 12205. [2024-10-11 03:22:18,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12205 states, 12204 states have (on average 1.4467387741724025) internal successors, (17656), 12204 states have internal predecessors, (17656), 0 states have call successors, (0), 0 states 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 03:22:18,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12205 states to 12205 states and 17656 transitions. [2024-10-11 03:22:18,414 INFO L78 Accepts]: Start accepts. Automaton has 12205 states and 17656 transitions. Word has length 107 [2024-10-11 03:22:18,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:18,414 INFO L471 AbstractCegarLoop]: Abstraction has 12205 states and 17656 transitions. [2024-10-11 03:22:18,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states 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 03:22:18,414 INFO L276 IsEmpty]: Start isEmpty. Operand 12205 states and 17656 transitions. [2024-10-11 03:22:18,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 03:22:18,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:18,416 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:18,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 03:22:18,416 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:18,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:18,417 INFO L85 PathProgramCache]: Analyzing trace with hash -27209837, now seen corresponding path program 1 times [2024-10-11 03:22:18,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:18,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760465331] [2024-10-11 03:22:18,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:18,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:18,648 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-11 03:22:18,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:18,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760465331] [2024-10-11 03:22:18,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760465331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:18,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:18,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:22:18,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585878178] [2024-10-11 03:22:18,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:18,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 03:22:18,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:18,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 03:22:18,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:22:18,651 INFO L87 Difference]: Start difference. First operand 12205 states and 17656 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 03:22:19,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:19,499 INFO L93 Difference]: Finished difference Result 26959 states and 39325 transitions. [2024-10-11 03:22:19,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:22:19,499 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 107 [2024-10-11 03:22:19,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:19,556 INFO L225 Difference]: With dead ends: 26959 [2024-10-11 03:22:19,556 INFO L226 Difference]: Without dead ends: 24457 [2024-10-11 03:22:19,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:22:19,572 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 1216 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:19,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 1514 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:22:19,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24457 states. [2024-10-11 03:22:20,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24457 to 14633. [2024-10-11 03:22:20,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14633 states, 14632 states have (on average 1.4461454346637508) internal successors, (21160), 14632 states have internal predecessors, (21160), 0 states have call successors, (0), 0 states 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 03:22:20,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14633 states to 14633 states and 21160 transitions. [2024-10-11 03:22:20,202 INFO L78 Accepts]: Start accepts. Automaton has 14633 states and 21160 transitions. Word has length 107 [2024-10-11 03:22:20,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:20,203 INFO L471 AbstractCegarLoop]: Abstraction has 14633 states and 21160 transitions. [2024-10-11 03:22:20,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 03:22:20,205 INFO L276 IsEmpty]: Start isEmpty. Operand 14633 states and 21160 transitions. [2024-10-11 03:22:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 03:22:20,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:20,206 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:20,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 03:22:20,207 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:20,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:20,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1499224475, now seen corresponding path program 1 times [2024-10-11 03:22:20,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:20,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234108279] [2024-10-11 03:22:20,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:20,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 03:22:20,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:20,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234108279] [2024-10-11 03:22:20,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234108279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:20,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:20,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:22:20,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289900076] [2024-10-11 03:22:20,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:20,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 03:22:20,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:20,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 03:22:20,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:22:20,416 INFO L87 Difference]: Start difference. First operand 14633 states and 21160 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states 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 03:22:21,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:21,122 INFO L93 Difference]: Finished difference Result 29387 states and 42829 transitions. [2024-10-11 03:22:21,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:22:21,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 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 107 [2024-10-11 03:22:21,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:21,240 INFO L225 Difference]: With dead ends: 29387 [2024-10-11 03:22:21,240 INFO L226 Difference]: Without dead ends: 26885 [2024-10-11 03:22:21,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:22:21,250 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 1155 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:21,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 1828 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:22:21,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26885 states. [2024-10-11 03:22:21,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26885 to 17061. [2024-10-11 03:22:21,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17061 states, 17060 states have (on average 1.4457209847596717) internal successors, (24664), 17060 states have internal predecessors, (24664), 0 states have call successors, (0), 0 states 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 03:22:21,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17061 states to 17061 states and 24664 transitions. [2024-10-11 03:22:21,810 INFO L78 Accepts]: Start accepts. Automaton has 17061 states and 24664 transitions. Word has length 107 [2024-10-11 03:22:21,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:21,811 INFO L471 AbstractCegarLoop]: Abstraction has 17061 states and 24664 transitions. [2024-10-11 03:22:21,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states 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 03:22:21,811 INFO L276 IsEmpty]: Start isEmpty. Operand 17061 states and 24664 transitions. [2024-10-11 03:22:21,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 03:22:21,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:21,813 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:21,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 03:22:21,814 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:21,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:21,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1149916516, now seen corresponding path program 1 times [2024-10-11 03:22:21,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:21,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917316698] [2024-10-11 03:22:21,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:21,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:21,995 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:22:21,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:21,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917316698] [2024-10-11 03:22:21,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917316698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:21,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:21,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:22:21,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285654458] [2024-10-11 03:22:21,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:21,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 03:22:21,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:21,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 03:22:21,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:22:21,999 INFO L87 Difference]: Start difference. First operand 17061 states and 24664 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:22,708 INFO L93 Difference]: Finished difference Result 31303 states and 45563 transitions. [2024-10-11 03:22:22,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:22:22,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-10-11 03:22:22,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:22,745 INFO L225 Difference]: With dead ends: 31303 [2024-10-11 03:22:22,745 INFO L226 Difference]: Without dead ends: 29133 [2024-10-11 03:22:22,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:22:22,757 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 1150 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:22,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 1664 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:22:22,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29133 states. [2024-10-11 03:22:23,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29133 to 19309. [2024-10-11 03:22:23,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19309 states, 19308 states have (on average 1.4448933084731717) internal successors, (27898), 19308 states have internal predecessors, (27898), 0 states have call successors, (0), 0 states 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 03:22:23,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19309 states to 19309 states and 27898 transitions. [2024-10-11 03:22:23,702 INFO L78 Accepts]: Start accepts. Automaton has 19309 states and 27898 transitions. Word has length 107 [2024-10-11 03:22:23,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:23,703 INFO L471 AbstractCegarLoop]: Abstraction has 19309 states and 27898 transitions. [2024-10-11 03:22:23,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:23,703 INFO L276 IsEmpty]: Start isEmpty. Operand 19309 states and 27898 transitions. [2024-10-11 03:22:23,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-11 03:22:23,706 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:23,706 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:23,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 03:22:23,706 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:23,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:23,707 INFO L85 PathProgramCache]: Analyzing trace with hash 909174283, now seen corresponding path program 1 times [2024-10-11 03:22:23,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:23,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670217207] [2024-10-11 03:22:23,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:23,847 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:23,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:23,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670217207] [2024-10-11 03:22:23,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670217207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:23,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:23,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:23,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239089942] [2024-10-11 03:22:23,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:23,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:23,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:23,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:23,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:23,850 INFO L87 Difference]: Start difference. First operand 19309 states and 27898 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states 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 03:22:24,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:24,226 INFO L93 Difference]: Finished difference Result 27586 states and 39688 transitions. [2024-10-11 03:22:24,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:24,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-10-11 03:22:24,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:24,242 INFO L225 Difference]: With dead ends: 27586 [2024-10-11 03:22:24,242 INFO L226 Difference]: Without dead ends: 8324 [2024-10-11 03:22:24,264 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 03:22:24,265 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 40 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:24,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 291 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:24,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8324 states. [2024-10-11 03:22:24,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8324 to 6674. [2024-10-11 03:22:24,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6674 states, 6673 states have (on average 1.4384834407313052) internal successors, (9599), 6673 states have internal predecessors, (9599), 0 states have call successors, (0), 0 states 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 03:22:24,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6674 states to 6674 states and 9599 transitions. [2024-10-11 03:22:24,547 INFO L78 Accepts]: Start accepts. Automaton has 6674 states and 9599 transitions. Word has length 110 [2024-10-11 03:22:24,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:24,548 INFO L471 AbstractCegarLoop]: Abstraction has 6674 states and 9599 transitions. [2024-10-11 03:22:24,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states 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 03:22:24,548 INFO L276 IsEmpty]: Start isEmpty. Operand 6674 states and 9599 transitions. [2024-10-11 03:22:24,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-11 03:22:24,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:24,550 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:24,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 03:22:24,551 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:24,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:24,551 INFO L85 PathProgramCache]: Analyzing trace with hash -264273110, now seen corresponding path program 1 times [2024-10-11 03:22:24,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:24,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874775245] [2024-10-11 03:22:24,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:24,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:25,445 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:25,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:25,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874775245] [2024-10-11 03:22:25,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874775245] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:22:25,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119060223] [2024-10-11 03:22:25,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:25,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:22:25,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:22:25,449 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:22:25,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 03:22:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:25,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 03:22:25,609 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:22:26,245 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:26,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:22:27,717 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:27,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119060223] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:22:27,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:22:27,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2024-10-11 03:22:27,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041886059] [2024-10-11 03:22:27,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:22:27,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 03:22:27,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:27,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 03:22:27,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2024-10-11 03:22:27,721 INFO L87 Difference]: Start difference. First operand 6674 states and 9599 transitions. Second operand has 23 states, 23 states have (on average 13.0) internal successors, (299), 22 states have internal predecessors, (299), 0 states have call successors, (0), 0 states 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 03:22:29,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:29,130 INFO L93 Difference]: Finished difference Result 33059 states and 47824 transitions. [2024-10-11 03:22:29,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-11 03:22:29,130 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 13.0) internal successors, (299), 22 states have internal predecessors, (299), 0 states have call successors, (0), 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 110 [2024-10-11 03:22:29,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:29,162 INFO L225 Difference]: With dead ends: 33059 [2024-10-11 03:22:29,163 INFO L226 Difference]: Without dead ends: 26779 [2024-10-11 03:22:29,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=375, Invalid=1431, Unknown=0, NotChecked=0, Total=1806 [2024-10-11 03:22:29,174 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 1526 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:29,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1629 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 03:22:29,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26779 states. [2024-10-11 03:22:29,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26779 to 16523. [2024-10-11 03:22:29,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16523 states, 16522 states have (on average 1.424948553443893) internal successors, (23543), 16522 states have internal predecessors, (23543), 0 states have call successors, (0), 0 states 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 03:22:29,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16523 states to 16523 states and 23543 transitions. [2024-10-11 03:22:29,659 INFO L78 Accepts]: Start accepts. Automaton has 16523 states and 23543 transitions. Word has length 110 [2024-10-11 03:22:29,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:29,659 INFO L471 AbstractCegarLoop]: Abstraction has 16523 states and 23543 transitions. [2024-10-11 03:22:29,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 13.0) internal successors, (299), 22 states have internal predecessors, (299), 0 states have call successors, (0), 0 states 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 03:22:29,659 INFO L276 IsEmpty]: Start isEmpty. Operand 16523 states and 23543 transitions. [2024-10-11 03:22:29,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-11 03:22:29,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:29,662 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:29,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 03:22:29,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:22:29,863 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:29,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:29,863 INFO L85 PathProgramCache]: Analyzing trace with hash -558292444, now seen corresponding path program 1 times [2024-10-11 03:22:29,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:29,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104183858] [2024-10-11 03:22:29,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:29,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:30,352 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:30,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:30,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104183858] [2024-10-11 03:22:30,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104183858] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:22:30,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531348335] [2024-10-11 03:22:30,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:30,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:22:30,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:22:30,356 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:22:30,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 03:22:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:30,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 03:22:30,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:22:31,036 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:31,036 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:22:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:32,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531348335] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:22:32,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:22:32,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-10-11 03:22:32,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248508002] [2024-10-11 03:22:32,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:22:32,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 03:22:32,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:32,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 03:22:32,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2024-10-11 03:22:32,003 INFO L87 Difference]: Start difference. First operand 16523 states and 23543 transitions. Second operand has 23 states, 23 states have (on average 12.521739130434783) internal successors, (288), 22 states have internal predecessors, (288), 0 states have call successors, (0), 0 states 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 03:22:37,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:37,011 INFO L93 Difference]: Finished difference Result 146144 states and 206665 transitions. [2024-10-11 03:22:37,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-11 03:22:37,011 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.521739130434783) internal successors, (288), 22 states have internal predecessors, (288), 0 states have call successors, (0), 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 110 [2024-10-11 03:22:37,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:37,156 INFO L225 Difference]: With dead ends: 146144 [2024-10-11 03:22:37,156 INFO L226 Difference]: Without dead ends: 129782 [2024-10-11 03:22:37,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1102 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=915, Invalid=3641, Unknown=0, NotChecked=0, Total=4556 [2024-10-11 03:22:37,183 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 5103 mSDsluCounter, 1853 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5103 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:37,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5103 Valid, 2031 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 03:22:37,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129782 states. [2024-10-11 03:22:40,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129782 to 99548. [2024-10-11 03:22:40,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99548 states, 99547 states have (on average 1.4036786643495032) internal successors, (139732), 99547 states have internal predecessors, (139732), 0 states have call successors, (0), 0 states 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 03:22:40,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99548 states to 99548 states and 139732 transitions. [2024-10-11 03:22:40,494 INFO L78 Accepts]: Start accepts. Automaton has 99548 states and 139732 transitions. Word has length 110 [2024-10-11 03:22:40,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:40,495 INFO L471 AbstractCegarLoop]: Abstraction has 99548 states and 139732 transitions. [2024-10-11 03:22:40,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.521739130434783) internal successors, (288), 22 states have internal predecessors, (288), 0 states have call successors, (0), 0 states 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 03:22:40,495 INFO L276 IsEmpty]: Start isEmpty. Operand 99548 states and 139732 transitions. [2024-10-11 03:22:40,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-11 03:22:40,503 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:40,503 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:40,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 03:22:40,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:22:40,705 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:40,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:40,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1632182550, now seen corresponding path program 1 times [2024-10-11 03:22:40,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:40,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899209779] [2024-10-11 03:22:40,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:40,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:40,792 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:40,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:40,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899209779] [2024-10-11 03:22:40,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899209779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:40,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:40,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:40,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998040881] [2024-10-11 03:22:40,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:40,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:40,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:40,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:40,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:40,796 INFO L87 Difference]: Start difference. First operand 99548 states and 139732 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:45,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:45,137 INFO L93 Difference]: Finished difference Result 267082 states and 373790 transitions. [2024-10-11 03:22:45,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:45,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-10-11 03:22:45,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:22:45,367 INFO L225 Difference]: With dead ends: 267082 [2024-10-11 03:22:45,367 INFO L226 Difference]: Without dead ends: 169071 [2024-10-11 03:22:45,449 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 03:22:45,451 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 76 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:22:45,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 318 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:22:45,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169071 states. [2024-10-11 03:22:51,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169071 to 169069. [2024-10-11 03:22:51,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169069 states, 169068 states have (on average 1.3863356755861547) internal successors, (234385), 169068 states have internal predecessors, (234385), 0 states have call successors, (0), 0 states 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 03:22:51,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169069 states to 169069 states and 234385 transitions. [2024-10-11 03:22:52,007 INFO L78 Accepts]: Start accepts. Automaton has 169069 states and 234385 transitions. Word has length 111 [2024-10-11 03:22:52,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:22:52,011 INFO L471 AbstractCegarLoop]: Abstraction has 169069 states and 234385 transitions. [2024-10-11 03:22:52,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:52,011 INFO L276 IsEmpty]: Start isEmpty. Operand 169069 states and 234385 transitions. [2024-10-11 03:22:52,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-11 03:22:52,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:22:52,024 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:52,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 03:22:52,025 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:22:52,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:22:52,025 INFO L85 PathProgramCache]: Analyzing trace with hash 415693630, now seen corresponding path program 1 times [2024-10-11 03:22:52,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:22:52,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647023421] [2024-10-11 03:22:52,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:22:52,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:22:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:22:52,089 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:22:52,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:22:52,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647023421] [2024-10-11 03:22:52,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647023421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:22:52,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:22:52,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:22:52,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522663639] [2024-10-11 03:22:52,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:22:52,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:22:52,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:22:52,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:22:52,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:22:52,092 INFO L87 Difference]: Start difference. First operand 169069 states and 234385 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:22:59,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:22:59,584 INFO L93 Difference]: Finished difference Result 473493 states and 652975 transitions. [2024-10-11 03:22:59,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:22:59,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-10-11 03:22:59,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:00,081 INFO L225 Difference]: With dead ends: 473493 [2024-10-11 03:23:00,082 INFO L226 Difference]: Without dead ends: 309711 [2024-10-11 03:23:00,208 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 03:23:00,209 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 73 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:00,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 339 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:00,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309711 states.