./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.1.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/hardware-verification-bv/btor2c-lazyMod.loyd.1.prop1-func-interl.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash aba1221204f0dfab6bbe54d8861cf1fb88f9109d65404caf61ae5236ccf822b6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 06:23:43,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 06:23:43,611 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 06:23:43,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 06:23:43,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 06:23:43,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 06:23:43,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 06:23:43,640 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 06:23:43,640 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 06:23:43,641 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 06:23:43,641 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 06:23:43,642 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 06:23:43,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 06:23:43,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 06:23:43,643 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 06:23:43,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 06:23:43,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 06:23:43,644 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 06:23:43,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 06:23:43,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 06:23:43,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 06:23:43,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 06:23:43,652 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 06:23:43,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 06:23:43,652 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 06:23:43,653 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 06:23:43,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 06:23:43,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 06:23:43,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 06:23:43,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 06:23:43,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 06:23:43,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 06:23:43,654 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 06:23:43,666 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 06:23:43,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 06:23:43,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 06:23:43,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 06:23:43,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 06:23:43,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 06:23:43,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aba1221204f0dfab6bbe54d8861cf1fb88f9109d65404caf61ae5236ccf822b6 [2024-10-11 06:23:43,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 06:23:43,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 06:23:43,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 06:23:43,991 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 06:23:43,992 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 06:23:43,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.1.prop1-func-interl.c [2024-10-11 06:23:45,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 06:23:45,834 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 06:23:45,835 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.1.prop1-func-interl.c [2024-10-11 06:23:45,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d6677e720/735cf749d4fd4fd493af91c2a7a76cad/FLAGbd762418b [2024-10-11 06:23:46,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d6677e720/735cf749d4fd4fd493af91c2a7a76cad [2024-10-11 06:23:46,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 06:23:46,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 06:23:46,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 06:23:46,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 06:23:46,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 06:23:46,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:46,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1606e4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46, skipping insertion in model container [2024-10-11 06:23:46,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:46,213 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 06:23:46,421 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.1.prop1-func-interl.c[1171,1184] [2024-10-11 06:23:46,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 06:23:46,671 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 06:23:46,681 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.1.prop1-func-interl.c[1171,1184] [2024-10-11 06:23:46,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 06:23:46,878 INFO L204 MainTranslator]: Completed translation [2024-10-11 06:23:46,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46 WrapperNode [2024-10-11 06:23:46,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 06:23:46,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 06:23:46,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 06:23:46,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 06:23:46,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:46,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:47,207 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2521 [2024-10-11 06:23:47,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 06:23:47,208 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 06:23:47,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 06:23:47,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 06:23:47,221 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:47,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:47,456 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:47,567 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 06:23:47,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:47,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:47,683 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:47,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:47,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:47,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:47,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 06:23:47,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 06:23:47,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 06:23:47,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 06:23:47,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (1/1) ... [2024-10-11 06:23:47,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 06:23:47,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 06:23:47,934 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 06:23:47,937 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 06:23:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 06:23:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 06:23:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 06:23:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 06:23:48,427 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 06:23:48,428 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 06:23:51,369 INFO L? ?]: Removed 1519 outVars from TransFormulas that were not future-live. [2024-10-11 06:23:51,369 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 06:23:51,466 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 06:23:51,470 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 06:23:51,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:23:51 BoogieIcfgContainer [2024-10-11 06:23:51,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 06:23:51,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 06:23:51,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 06:23:51,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 06:23:51,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:23:46" (1/3) ... [2024-10-11 06:23:51,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52224402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:23:51, skipping insertion in model container [2024-10-11 06:23:51,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:23:46" (2/3) ... [2024-10-11 06:23:51,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52224402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:23:51, skipping insertion in model container [2024-10-11 06:23:51,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:23:51" (3/3) ... [2024-10-11 06:23:51,513 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.loyd.1.prop1-func-interl.c [2024-10-11 06:23:51,531 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 06:23:51,532 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 06:23:51,632 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 06:23:51,643 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;@57452912, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 06:23:51,644 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 06:23:51,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 773 states, 771 states have (on average 1.5071335927367056) internal successors, (1162), 772 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states 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 06:23:51,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-11 06:23:51,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:23:51,662 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 06:23:51,663 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:23:51,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:23:51,669 INFO L85 PathProgramCache]: Analyzing trace with hash 40710768, now seen corresponding path program 1 times [2024-10-11 06:23:51,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:23:51,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986695719] [2024-10-11 06:23:51,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:23:51,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:23:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:23:52,367 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 06:23:52,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:23:52,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986695719] [2024-10-11 06:23:52,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986695719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:23:52,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:23:52,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 06:23:52,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601556850] [2024-10-11 06:23:52,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:23:52,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:23:52,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:23:52,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:23:52,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:23:52,407 INFO L87 Difference]: Start difference. First operand has 773 states, 771 states have (on average 1.5071335927367056) internal successors, (1162), 772 states have internal predecessors, (1162), 0 states have call successors, (0), 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 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:23:52,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:23:52,532 INFO L93 Difference]: Finished difference Result 1498 states and 2254 transitions. [2024-10-11 06:23:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:23:52,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-10-11 06:23:52,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:23:52,559 INFO L225 Difference]: With dead ends: 1498 [2024-10-11 06:23:52,560 INFO L226 Difference]: Without dead ends: 774 [2024-10-11 06:23:52,565 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 06:23:52,569 INFO L432 NwaCegarLoop]: 1157 mSDtfsCounter, 0 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3466 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:23:52,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3466 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:23:52,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2024-10-11 06:23:52,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 774. [2024-10-11 06:23:52,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 773 states have (on average 1.5032341526520052) internal successors, (1162), 773 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states 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 06:23:52,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1162 transitions. [2024-10-11 06:23:52,652 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1162 transitions. Word has length 42 [2024-10-11 06:23:52,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:23:52,653 INFO L471 AbstractCegarLoop]: Abstraction has 774 states and 1162 transitions. [2024-10-11 06:23:52,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:23:52,654 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1162 transitions. [2024-10-11 06:23:52,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 06:23:52,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:23:52,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 06:23:52,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 06:23:52,656 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:23:52,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:23:52,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1263729208, now seen corresponding path program 1 times [2024-10-11 06:23:52,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:23:52,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895709217] [2024-10-11 06:23:52,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:23:52,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:23:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:23:52,851 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 06:23:52,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:23:52,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895709217] [2024-10-11 06:23:52,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895709217] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:23:52,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:23:52,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 06:23:52,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427286270] [2024-10-11 06:23:52,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:23:52,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:23:52,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:23:52,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:23:52,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:23:52,858 INFO L87 Difference]: Start difference. First operand 774 states and 1162 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:23:52,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:23:52,916 INFO L93 Difference]: Finished difference Result 1501 states and 2254 transitions. [2024-10-11 06:23:52,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:23:52,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-10-11 06:23:52,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:23:52,922 INFO L225 Difference]: With dead ends: 1501 [2024-10-11 06:23:52,922 INFO L226 Difference]: Without dead ends: 776 [2024-10-11 06:23:52,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:23:52,927 INFO L432 NwaCegarLoop]: 1157 mSDtfsCounter, 0 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3463 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:23:52,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3463 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:23:52,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2024-10-11 06:23:52,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 776. [2024-10-11 06:23:52,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 775 states have (on average 1.5019354838709678) internal successors, (1164), 775 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states 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 06:23:52,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1164 transitions. [2024-10-11 06:23:52,976 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1164 transitions. Word has length 43 [2024-10-11 06:23:52,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:23:52,977 INFO L471 AbstractCegarLoop]: Abstraction has 776 states and 1164 transitions. [2024-10-11 06:23:52,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:23:52,978 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1164 transitions. [2024-10-11 06:23:52,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 06:23:52,980 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:23:52,980 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 06:23:52,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 06:23:52,980 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:23:52,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:23:52,981 INFO L85 PathProgramCache]: Analyzing trace with hash -577065911, now seen corresponding path program 1 times [2024-10-11 06:23:52,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:23:52,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290257420] [2024-10-11 06:23:52,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:23:52,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:23:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:23:53,164 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 06:23:53,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:23:53,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290257420] [2024-10-11 06:23:53,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290257420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:23:53,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:23:53,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 06:23:53,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164878458] [2024-10-11 06:23:53,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:23:53,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:23:53,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:23:53,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:23:53,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:23:53,170 INFO L87 Difference]: Start difference. First operand 776 states and 1164 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:23:53,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:23:53,222 INFO L93 Difference]: Finished difference Result 1505 states and 2258 transitions. [2024-10-11 06:23:53,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:23:53,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-10-11 06:23:53,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:23:53,226 INFO L225 Difference]: With dead ends: 1505 [2024-10-11 06:23:53,227 INFO L226 Difference]: Without dead ends: 778 [2024-10-11 06:23:53,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:23:53,230 INFO L432 NwaCegarLoop]: 1157 mSDtfsCounter, 0 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3457 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:23:53,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3457 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:23:53,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-10-11 06:23:53,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 778. [2024-10-11 06:23:53,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 777 states have (on average 1.5006435006435006) internal successors, (1166), 777 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states 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 06:23:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1166 transitions. [2024-10-11 06:23:53,314 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1166 transitions. Word has length 44 [2024-10-11 06:23:53,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:23:53,314 INFO L471 AbstractCegarLoop]: Abstraction has 778 states and 1166 transitions. [2024-10-11 06:23:53,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:23:53,315 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1166 transitions. [2024-10-11 06:23:53,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-11 06:23:53,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:23:53,318 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] [2024-10-11 06:23:53,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 06:23:53,318 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:23:53,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:23:53,319 INFO L85 PathProgramCache]: Analyzing trace with hash 199712991, now seen corresponding path program 1 times [2024-10-11 06:23:53,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:23:53,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453290329] [2024-10-11 06:23:53,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:23:53,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:23:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:23:53,664 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 06:23:53,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:23:53,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453290329] [2024-10-11 06:23:53,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453290329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:23:53,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:23:53,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 06:23:53,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371904480] [2024-10-11 06:23:53,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:23:53,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 06:23:53,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:23:53,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 06:23:53,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 06:23:53,668 INFO L87 Difference]: Start difference. First operand 778 states and 1166 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 06:23:53,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:23:53,855 INFO L93 Difference]: Finished difference Result 2174 states and 3261 transitions. [2024-10-11 06:23:53,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:23:53,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-11 06:23:53,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:23:53,862 INFO L225 Difference]: With dead ends: 2174 [2024-10-11 06:23:53,862 INFO L226 Difference]: Without dead ends: 1445 [2024-10-11 06:23:53,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-11 06:23:53,865 INFO L432 NwaCegarLoop]: 1150 mSDtfsCounter, 1043 mSDsluCounter, 5664 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 6814 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 06:23:53,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 6814 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 06:23:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2024-10-11 06:23:53,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 798. [2024-10-11 06:23:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.5006273525721456) internal successors, (1196), 797 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states 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 06:23:53,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1196 transitions. [2024-10-11 06:23:53,891 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1196 transitions. Word has length 45 [2024-10-11 06:23:53,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:23:53,892 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1196 transitions. [2024-10-11 06:23:53,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 06:23:53,892 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1196 transitions. [2024-10-11 06:23:53,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-10-11 06:23:53,902 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:23:53,903 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:23:53,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 06:23:53,904 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:23:53,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:23:53,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1514190027, now seen corresponding path program 1 times [2024-10-11 06:23:53,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:23:53,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311537099] [2024-10-11 06:23:53,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:23:53,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:23:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:23:55,653 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 06:23:55,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:23:55,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311537099] [2024-10-11 06:23:55,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311537099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:23:55,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:23:55,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 06:23:55,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798253854] [2024-10-11 06:23:55,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:23:55,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:23:55,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:23:55,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:23:55,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:23:55,665 INFO L87 Difference]: Start difference. First operand 798 states and 1196 transitions. Second operand has 4 states, 4 states have (on average 100.5) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states 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 06:23:55,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:23:55,730 INFO L93 Difference]: Finished difference Result 1527 states and 2289 transitions. [2024-10-11 06:23:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:23:55,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 100.5) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 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 402 [2024-10-11 06:23:55,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:23:55,735 INFO L225 Difference]: With dead ends: 1527 [2024-10-11 06:23:55,735 INFO L226 Difference]: Without dead ends: 798 [2024-10-11 06:23:55,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 06:23:55,739 INFO L432 NwaCegarLoop]: 1150 mSDtfsCounter, 1103 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 2298 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:23:55,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 2298 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:23:55,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-10-11 06:23:55,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-10-11 06:23:55,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4993726474278544) internal successors, (1195), 797 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states 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 06:23:55,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1195 transitions. [2024-10-11 06:23:55,763 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1195 transitions. Word has length 402 [2024-10-11 06:23:55,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:23:55,764 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1195 transitions. [2024-10-11 06:23:55,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.5) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states 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 06:23:55,764 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1195 transitions. [2024-10-11 06:23:55,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-10-11 06:23:55,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:23:55,772 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:23:55,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 06:23:55,774 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:23:55,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:23:55,774 INFO L85 PathProgramCache]: Analyzing trace with hash -47248749, now seen corresponding path program 1 times [2024-10-11 06:23:55,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:23:55,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051278638] [2024-10-11 06:23:55,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:23:55,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:23:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:23:57,289 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 06:23:57,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:23:57,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051278638] [2024-10-11 06:23:57,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051278638] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:23:57,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:23:57,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 06:23:57,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266622015] [2024-10-11 06:23:57,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:23:57,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:23:57,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:23:57,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:23:57,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:23:57,293 INFO L87 Difference]: Start difference. First operand 798 states and 1195 transitions. Second operand has 4 states, 4 states have (on average 100.75) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states 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 06:23:57,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:23:57,347 INFO L93 Difference]: Finished difference Result 1527 states and 2287 transitions. [2024-10-11 06:23:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:23:57,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 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 403 [2024-10-11 06:23:57,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:23:57,351 INFO L225 Difference]: With dead ends: 1527 [2024-10-11 06:23:57,352 INFO L226 Difference]: Without dead ends: 798 [2024-10-11 06:23:57,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 06:23:57,354 INFO L432 NwaCegarLoop]: 1149 mSDtfsCounter, 1097 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:23:57,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 2296 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:23:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-10-11 06:23:57,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-10-11 06:23:57,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4981179422835633) internal successors, (1194), 797 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states 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 06:23:57,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1194 transitions. [2024-10-11 06:23:57,373 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1194 transitions. Word has length 403 [2024-10-11 06:23:57,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:23:57,374 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1194 transitions. [2024-10-11 06:23:57,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states 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 06:23:57,374 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1194 transitions. [2024-10-11 06:23:57,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-10-11 06:23:57,381 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:23:57,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:23:57,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 06:23:57,382 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:23:57,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:23:57,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1452830440, now seen corresponding path program 1 times [2024-10-11 06:23:57,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:23:57,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322120097] [2024-10-11 06:23:57,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:23:57,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:23:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:23:58,664 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 06:23:58,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:23:58,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322120097] [2024-10-11 06:23:58,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322120097] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:23:58,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:23:58,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 06:23:58,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949178210] [2024-10-11 06:23:58,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:23:58,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:23:58,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:23:58,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:23:58,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:23:58,669 INFO L87 Difference]: Start difference. First operand 798 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 101.0) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states 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 06:23:58,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:23:58,725 INFO L93 Difference]: Finished difference Result 1527 states and 2285 transitions. [2024-10-11 06:23:58,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:23:58,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 101.0) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 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 404 [2024-10-11 06:23:58,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:23:58,730 INFO L225 Difference]: With dead ends: 1527 [2024-10-11 06:23:58,730 INFO L226 Difference]: Without dead ends: 798 [2024-10-11 06:23:58,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 06:23:58,734 INFO L432 NwaCegarLoop]: 1148 mSDtfsCounter, 1091 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:23:58,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 2294 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:23:58,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-10-11 06:23:58,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-10-11 06:23:58,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4968632371392723) internal successors, (1193), 797 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states 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 06:23:58,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1193 transitions. [2024-10-11 06:23:58,757 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1193 transitions. Word has length 404 [2024-10-11 06:23:58,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:23:58,758 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1193 transitions. [2024-10-11 06:23:58,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.0) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states 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 06:23:58,759 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1193 transitions. [2024-10-11 06:23:58,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-10-11 06:23:58,766 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:23:58,766 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:23:58,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 06:23:58,767 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:23:58,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:23:58,768 INFO L85 PathProgramCache]: Analyzing trace with hash -761025280, now seen corresponding path program 1 times [2024-10-11 06:23:58,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:23:58,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132128757] [2024-10-11 06:23:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:23:58,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:23:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:23:59,941 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 06:23:59,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:23:59,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132128757] [2024-10-11 06:23:59,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132128757] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:23:59,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:23:59,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 06:23:59,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055146532] [2024-10-11 06:23:59,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:23:59,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:23:59,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:23:59,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:23:59,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:23:59,947 INFO L87 Difference]: Start difference. First operand 798 states and 1193 transitions. Second operand has 4 states, 4 states have (on average 101.25) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states 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 06:23:59,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:23:59,999 INFO L93 Difference]: Finished difference Result 1527 states and 2283 transitions. [2024-10-11 06:23:59,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:23:59,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 101.25) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 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 405 [2024-10-11 06:24:00,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:00,004 INFO L225 Difference]: With dead ends: 1527 [2024-10-11 06:24:00,005 INFO L226 Difference]: Without dead ends: 798 [2024-10-11 06:24:00,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 06:24:00,007 INFO L432 NwaCegarLoop]: 1147 mSDtfsCounter, 1085 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:00,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 2292 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:24:00,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-10-11 06:24:00,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-10-11 06:24:00,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4956085319949812) internal successors, (1192), 797 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states 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 06:24:00,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1192 transitions. [2024-10-11 06:24:00,031 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1192 transitions. Word has length 405 [2024-10-11 06:24:00,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:00,032 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1192 transitions. [2024-10-11 06:24:00,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.25) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states 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 06:24:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1192 transitions. [2024-10-11 06:24:00,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-10-11 06:24:00,038 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:00,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:00,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 06:24:00,039 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:00,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:00,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1133392283, now seen corresponding path program 1 times [2024-10-11 06:24:00,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:00,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904141879] [2024-10-11 06:24:00,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:00,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:01,088 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 06:24:01,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:01,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904141879] [2024-10-11 06:24:01,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904141879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:01,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:01,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 06:24:01,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497131882] [2024-10-11 06:24:01,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:01,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:24:01,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:01,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:24:01,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:24:01,092 INFO L87 Difference]: Start difference. First operand 798 states and 1192 transitions. Second operand has 4 states, 4 states have (on average 101.5) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states 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 06:24:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:01,141 INFO L93 Difference]: Finished difference Result 1527 states and 2281 transitions. [2024-10-11 06:24:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:24:01,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 101.5) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 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 406 [2024-10-11 06:24:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:01,146 INFO L225 Difference]: With dead ends: 1527 [2024-10-11 06:24:01,146 INFO L226 Difference]: Without dead ends: 798 [2024-10-11 06:24:01,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 06:24:01,148 INFO L432 NwaCegarLoop]: 1146 mSDtfsCounter, 1079 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:01,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 2290 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:24:01,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-10-11 06:24:01,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-10-11 06:24:01,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4943538268506902) internal successors, (1191), 797 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states 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 06:24:01,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1191 transitions. [2024-10-11 06:24:01,170 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1191 transitions. Word has length 406 [2024-10-11 06:24:01,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:01,171 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1191 transitions. [2024-10-11 06:24:01,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.5) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states 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 06:24:01,172 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1191 transitions. [2024-10-11 06:24:01,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-10-11 06:24:01,179 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:01,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:01,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 06:24:01,180 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:01,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:01,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1530083219, now seen corresponding path program 1 times [2024-10-11 06:24:01,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:01,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864249963] [2024-10-11 06:24:01,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:01,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:02,251 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 06:24:02,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:02,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864249963] [2024-10-11 06:24:02,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864249963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:02,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:02,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 06:24:02,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563548934] [2024-10-11 06:24:02,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:02,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:24:02,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:24:02,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:24:02,255 INFO L87 Difference]: Start difference. First operand 798 states and 1191 transitions. Second operand has 4 states, 4 states have (on average 101.75) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states 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 06:24:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:02,303 INFO L93 Difference]: Finished difference Result 1527 states and 2279 transitions. [2024-10-11 06:24:02,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:24:02,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 101.75) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 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 407 [2024-10-11 06:24:02,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:02,309 INFO L225 Difference]: With dead ends: 1527 [2024-10-11 06:24:02,310 INFO L226 Difference]: Without dead ends: 798 [2024-10-11 06:24:02,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 06:24:02,312 INFO L432 NwaCegarLoop]: 1145 mSDtfsCounter, 1023 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 2288 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:02,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 2288 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:24:02,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-10-11 06:24:02,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-10-11 06:24:02,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.493099121706399) internal successors, (1190), 797 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states 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 06:24:02,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1190 transitions. [2024-10-11 06:24:02,329 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1190 transitions. Word has length 407 [2024-10-11 06:24:02,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:02,330 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1190 transitions. [2024-10-11 06:24:02,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.75) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states 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 06:24:02,331 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1190 transitions. [2024-10-11 06:24:02,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-10-11 06:24:02,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:02,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:02,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 06:24:02,337 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:02,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:02,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1634609277, now seen corresponding path program 1 times [2024-10-11 06:24:02,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:02,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876437492] [2024-10-11 06:24:02,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:02,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:03,396 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 06:24:03,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:03,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876437492] [2024-10-11 06:24:03,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876437492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:03,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:03,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 06:24:03,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914108450] [2024-10-11 06:24:03,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:03,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:24:03,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:03,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:24:03,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:24:03,401 INFO L87 Difference]: Start difference. First operand 798 states and 1190 transitions. Second operand has 4 states, 4 states have (on average 102.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states 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 06:24:03,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:03,448 INFO L93 Difference]: Finished difference Result 1527 states and 2277 transitions. [2024-10-11 06:24:03,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:24:03,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 102.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 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 408 [2024-10-11 06:24:03,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:03,452 INFO L225 Difference]: With dead ends: 1527 [2024-10-11 06:24:03,453 INFO L226 Difference]: Without dead ends: 798 [2024-10-11 06:24:03,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 06:24:03,455 INFO L432 NwaCegarLoop]: 1144 mSDtfsCounter, 995 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:03,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 2286 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:24:03,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-10-11 06:24:03,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-10-11 06:24:03,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4918444165621079) internal successors, (1189), 797 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states 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 06:24:03,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1189 transitions. [2024-10-11 06:24:03,476 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1189 transitions. Word has length 408 [2024-10-11 06:24:03,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:03,477 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1189 transitions. [2024-10-11 06:24:03,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states 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 06:24:03,478 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1189 transitions. [2024-10-11 06:24:03,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-10-11 06:24:03,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:03,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:03,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 06:24:03,485 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:03,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:03,486 INFO L85 PathProgramCache]: Analyzing trace with hash -842377875, now seen corresponding path program 1 times [2024-10-11 06:24:03,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:03,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374199733] [2024-10-11 06:24:03,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:03,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:04,753 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 06:24:04,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:04,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374199733] [2024-10-11 06:24:04,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374199733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:04,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:04,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 06:24:04,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947269196] [2024-10-11 06:24:04,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:04,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:24:04,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:04,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:24:04,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:24:04,756 INFO L87 Difference]: Start difference. First operand 798 states and 1189 transitions. Second operand has 4 states, 4 states have (on average 102.25) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states 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 06:24:04,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:04,806 INFO L93 Difference]: Finished difference Result 1527 states and 2275 transitions. [2024-10-11 06:24:04,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:24:04,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 102.25) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 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 409 [2024-10-11 06:24:04,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:04,810 INFO L225 Difference]: With dead ends: 1527 [2024-10-11 06:24:04,810 INFO L226 Difference]: Without dead ends: 798 [2024-10-11 06:24:04,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 06:24:04,812 INFO L432 NwaCegarLoop]: 1143 mSDtfsCounter, 967 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 2284 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:04,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 2284 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:24:04,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-10-11 06:24:04,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-10-11 06:24:04,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4905897114178168) internal successors, (1188), 797 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 06:24:04,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1188 transitions. [2024-10-11 06:24:04,830 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1188 transitions. Word has length 409 [2024-10-11 06:24:04,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:04,831 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1188 transitions. [2024-10-11 06:24:04,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.25) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states 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 06:24:04,831 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1188 transitions. [2024-10-11 06:24:04,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-10-11 06:24:04,837 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:04,838 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:04,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 06:24:04,838 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:04,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:04,839 INFO L85 PathProgramCache]: Analyzing trace with hash 723357443, now seen corresponding path program 1 times [2024-10-11 06:24:04,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:04,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184147560] [2024-10-11 06:24:04,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:04,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:05,849 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 06:24:05,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:05,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184147560] [2024-10-11 06:24:05,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184147560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:05,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:05,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 06:24:05,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251023622] [2024-10-11 06:24:05,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:05,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:24:05,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:05,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:24:05,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:24:05,853 INFO L87 Difference]: Start difference. First operand 798 states and 1188 transitions. Second operand has 4 states, 4 states have (on average 102.5) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states 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 06:24:05,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:05,913 INFO L93 Difference]: Finished difference Result 1527 states and 2273 transitions. [2024-10-11 06:24:05,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:24:05,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 102.5) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 410 [2024-10-11 06:24:05,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:05,918 INFO L225 Difference]: With dead ends: 1527 [2024-10-11 06:24:05,918 INFO L226 Difference]: Without dead ends: 798 [2024-10-11 06:24:05,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 06:24:05,922 INFO L432 NwaCegarLoop]: 1142 mSDtfsCounter, 939 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:05,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 2282 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:24:05,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-10-11 06:24:05,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-10-11 06:24:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4893350062735258) internal successors, (1187), 797 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states 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 06:24:05,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1187 transitions. [2024-10-11 06:24:05,943 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1187 transitions. Word has length 410 [2024-10-11 06:24:05,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:05,944 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1187 transitions. [2024-10-11 06:24:05,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.5) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states 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 06:24:05,944 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1187 transitions. [2024-10-11 06:24:05,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-10-11 06:24:05,950 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:05,951 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:05,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 06:24:05,951 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:05,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:05,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1835937171, now seen corresponding path program 1 times [2024-10-11 06:24:05,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:05,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796874476] [2024-10-11 06:24:05,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:05,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:06,932 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 06:24:06,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:06,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796874476] [2024-10-11 06:24:06,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796874476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:06,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:06,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 06:24:06,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685714090] [2024-10-11 06:24:06,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:06,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:24:06,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:06,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:24:06,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:24:06,935 INFO L87 Difference]: Start difference. First operand 798 states and 1187 transitions. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:24:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:06,983 INFO L93 Difference]: Finished difference Result 1527 states and 2271 transitions. [2024-10-11 06:24:06,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:24:06,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 411 [2024-10-11 06:24:06,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:06,987 INFO L225 Difference]: With dead ends: 1527 [2024-10-11 06:24:06,988 INFO L226 Difference]: Without dead ends: 798 [2024-10-11 06:24:06,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 06:24:06,990 INFO L432 NwaCegarLoop]: 1141 mSDtfsCounter, 911 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 2280 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:06,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 2280 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:24:06,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-10-11 06:24:07,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-10-11 06:24:07,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4880803011292347) internal successors, (1186), 797 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states 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 06:24:07,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1186 transitions. [2024-10-11 06:24:07,009 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1186 transitions. Word has length 411 [2024-10-11 06:24:07,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:07,010 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1186 transitions. [2024-10-11 06:24:07,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:24:07,010 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1186 transitions. [2024-10-11 06:24:07,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-10-11 06:24:07,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:07,017 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:07,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 06:24:07,017 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:07,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:07,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1783720317, now seen corresponding path program 1 times [2024-10-11 06:24:07,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:07,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146396248] [2024-10-11 06:24:07,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:07,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:08,759 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 06:24:08,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:08,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146396248] [2024-10-11 06:24:08,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146396248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:08,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:08,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 06:24:08,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405084023] [2024-10-11 06:24:08,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:08,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:08,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:08,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:08,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:08,763 INFO L87 Difference]: Start difference. First operand 798 states and 1186 transitions. Second operand has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 5 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 06:24:09,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:09,076 INFO L93 Difference]: Finished difference Result 1531 states and 2275 transitions. [2024-10-11 06:24:09,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:09,077 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 5 states have internal predecessors, (412), 0 states have call successors, (0), 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 412 [2024-10-11 06:24:09,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:09,081 INFO L225 Difference]: With dead ends: 1531 [2024-10-11 06:24:09,081 INFO L226 Difference]: Without dead ends: 802 [2024-10-11 06:24:09,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:09,083 INFO L432 NwaCegarLoop]: 1064 mSDtfsCounter, 1096 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:09,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 4244 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 06:24:09,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-10-11 06:24:09,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 800. [2024-10-11 06:24:09,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 1.4868585732165207) internal successors, (1188), 799 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 06:24:09,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1188 transitions. [2024-10-11 06:24:09,104 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1188 transitions. Word has length 412 [2024-10-11 06:24:09,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:09,105 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1188 transitions. [2024-10-11 06:24:09,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 5 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 06:24:09,105 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1188 transitions. [2024-10-11 06:24:09,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-10-11 06:24:09,109 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:09,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:09,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 06:24:09,110 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:09,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:09,111 INFO L85 PathProgramCache]: Analyzing trace with hash -55470665, now seen corresponding path program 1 times [2024-10-11 06:24:09,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:09,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521405709] [2024-10-11 06:24:09,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:09,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:10,567 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 06:24:10,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:10,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521405709] [2024-10-11 06:24:10,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521405709] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:10,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:10,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 06:24:10,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862748374] [2024-10-11 06:24:10,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:10,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:10,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:10,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:10,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:10,571 INFO L87 Difference]: Start difference. First operand 800 states and 1188 transitions. Second operand has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 states 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 06:24:10,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:10,929 INFO L93 Difference]: Finished difference Result 1535 states and 2279 transitions. [2024-10-11 06:24:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:10,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 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 413 [2024-10-11 06:24:10,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:10,933 INFO L225 Difference]: With dead ends: 1535 [2024-10-11 06:24:10,934 INFO L226 Difference]: Without dead ends: 804 [2024-10-11 06:24:10,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:10,936 INFO L432 NwaCegarLoop]: 1064 mSDtfsCounter, 1152 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:10,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 4244 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 06:24:10,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2024-10-11 06:24:10,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 802. [2024-10-11 06:24:10,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 801 states have (on average 1.4856429463171037) internal successors, (1190), 801 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states 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 06:24:10,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1190 transitions. [2024-10-11 06:24:10,960 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1190 transitions. Word has length 413 [2024-10-11 06:24:10,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:10,961 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1190 transitions. [2024-10-11 06:24:10,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 states 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 06:24:10,962 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1190 transitions. [2024-10-11 06:24:10,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-10-11 06:24:10,966 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:10,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:10,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 06:24:10,967 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:10,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:10,968 INFO L85 PathProgramCache]: Analyzing trace with hash -135739906, now seen corresponding path program 1 times [2024-10-11 06:24:10,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:10,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793298928] [2024-10-11 06:24:10,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:10,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:12,362 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 06:24:12,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:12,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793298928] [2024-10-11 06:24:12,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793298928] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:12,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:12,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 06:24:12,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263842464] [2024-10-11 06:24:12,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:12,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:12,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:12,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:12,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:12,366 INFO L87 Difference]: Start difference. First operand 802 states and 1190 transitions. Second operand has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states 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 06:24:12,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:12,699 INFO L93 Difference]: Finished difference Result 1539 states and 2283 transitions. [2024-10-11 06:24:12,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:12,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 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 414 [2024-10-11 06:24:12,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:12,703 INFO L225 Difference]: With dead ends: 1539 [2024-10-11 06:24:12,703 INFO L226 Difference]: Without dead ends: 806 [2024-10-11 06:24:12,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:12,705 INFO L432 NwaCegarLoop]: 1064 mSDtfsCounter, 1146 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:12,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 4244 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 06:24:12,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-10-11 06:24:12,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 804. [2024-10-11 06:24:12,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 803 states have (on average 1.4844333748443337) internal successors, (1192), 803 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states 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 06:24:12,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1192 transitions. [2024-10-11 06:24:12,726 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1192 transitions. Word has length 414 [2024-10-11 06:24:12,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:12,726 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1192 transitions. [2024-10-11 06:24:12,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states 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 06:24:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1192 transitions. [2024-10-11 06:24:12,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-10-11 06:24:12,731 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:12,731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:12,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 06:24:12,732 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:12,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:12,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1259576132, now seen corresponding path program 1 times [2024-10-11 06:24:12,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:12,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573831782] [2024-10-11 06:24:12,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:12,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:13,933 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 06:24:13,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:13,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573831782] [2024-10-11 06:24:13,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573831782] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:13,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:13,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 06:24:13,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393587734] [2024-10-11 06:24:13,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:13,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:13,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:13,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:13,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:13,937 INFO L87 Difference]: Start difference. First operand 804 states and 1192 transitions. Second operand has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 0 states 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 06:24:14,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:14,265 INFO L93 Difference]: Finished difference Result 1543 states and 2287 transitions. [2024-10-11 06:24:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:14,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 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 415 [2024-10-11 06:24:14,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:14,270 INFO L225 Difference]: With dead ends: 1543 [2024-10-11 06:24:14,270 INFO L226 Difference]: Without dead ends: 808 [2024-10-11 06:24:14,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:14,272 INFO L432 NwaCegarLoop]: 1064 mSDtfsCounter, 1140 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:14,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 4244 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 06:24:14,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-10-11 06:24:14,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 806. [2024-10-11 06:24:14,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 805 states have (on average 1.4832298136645963) internal successors, (1194), 805 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states 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 06:24:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1194 transitions. [2024-10-11 06:24:14,290 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1194 transitions. Word has length 415 [2024-10-11 06:24:14,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:14,290 INFO L471 AbstractCegarLoop]: Abstraction has 806 states and 1194 transitions. [2024-10-11 06:24:14,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 0 states 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 06:24:14,291 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1194 transitions. [2024-10-11 06:24:14,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-10-11 06:24:14,294 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:14,294 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:14,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 06:24:14,294 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:14,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:14,295 INFO L85 PathProgramCache]: Analyzing trace with hash 976475257, now seen corresponding path program 1 times [2024-10-11 06:24:14,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:14,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755734233] [2024-10-11 06:24:14,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:14,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:15,493 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 06:24:15,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:15,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755734233] [2024-10-11 06:24:15,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755734233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:15,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:15,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 06:24:15,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475975670] [2024-10-11 06:24:15,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:15,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:15,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:15,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:15,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:15,501 INFO L87 Difference]: Start difference. First operand 806 states and 1194 transitions. Second operand has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states 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 06:24:15,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:15,815 INFO L93 Difference]: Finished difference Result 1547 states and 2291 transitions. [2024-10-11 06:24:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:15,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 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 416 [2024-10-11 06:24:15,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:15,819 INFO L225 Difference]: With dead ends: 1547 [2024-10-11 06:24:15,819 INFO L226 Difference]: Without dead ends: 810 [2024-10-11 06:24:15,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:15,821 INFO L432 NwaCegarLoop]: 1064 mSDtfsCounter, 1134 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 4245 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:15,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 4245 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 06:24:15,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-10-11 06:24:15,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 808. [2024-10-11 06:24:15,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 807 states have (on average 1.4820322180916976) internal successors, (1196), 807 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states 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 06:24:15,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1196 transitions. [2024-10-11 06:24:15,838 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1196 transitions. Word has length 416 [2024-10-11 06:24:15,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:15,839 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1196 transitions. [2024-10-11 06:24:15,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states 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 06:24:15,840 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1196 transitions. [2024-10-11 06:24:15,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-10-11 06:24:15,842 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:15,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:15,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 06:24:15,843 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:15,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:15,844 INFO L85 PathProgramCache]: Analyzing trace with hash -523985727, now seen corresponding path program 1 times [2024-10-11 06:24:15,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:15,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912724085] [2024-10-11 06:24:15,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:15,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:17,686 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 06:24:17,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:17,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912724085] [2024-10-11 06:24:17,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912724085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:17,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:17,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 06:24:17,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115892734] [2024-10-11 06:24:17,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:17,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:17,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:17,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:17,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:17,690 INFO L87 Difference]: Start difference. First operand 808 states and 1196 transitions. Second operand has 6 states, 6 states have (on average 69.5) internal successors, (417), 5 states have internal predecessors, (417), 0 states have call successors, (0), 0 states 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 06:24:17,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:17,926 INFO L93 Difference]: Finished difference Result 1882 states and 2782 transitions. [2024-10-11 06:24:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:17,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 5 states have internal predecessors, (417), 0 states have call successors, (0), 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 417 [2024-10-11 06:24:17,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:17,932 INFO L225 Difference]: With dead ends: 1882 [2024-10-11 06:24:17,932 INFO L226 Difference]: Without dead ends: 1143 [2024-10-11 06:24:17,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-11 06:24:17,934 INFO L432 NwaCegarLoop]: 1440 mSDtfsCounter, 1612 mSDsluCounter, 3975 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 5415 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:17,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 5415 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 06:24:17,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2024-10-11 06:24:17,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 914. [2024-10-11 06:24:17,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 913 states have (on average 1.4742606790799562) internal successors, (1346), 913 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states 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 06:24:17,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1346 transitions. [2024-10-11 06:24:17,955 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1346 transitions. Word has length 417 [2024-10-11 06:24:17,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:17,956 INFO L471 AbstractCegarLoop]: Abstraction has 914 states and 1346 transitions. [2024-10-11 06:24:17,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 5 states have internal predecessors, (417), 0 states have call successors, (0), 0 states 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 06:24:17,956 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1346 transitions. [2024-10-11 06:24:17,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-10-11 06:24:17,960 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:17,960 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:17,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 06:24:17,961 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:17,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:17,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1995395146, now seen corresponding path program 1 times [2024-10-11 06:24:17,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:17,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865191959] [2024-10-11 06:24:17,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:17,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:21,254 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 06:24:21,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:21,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865191959] [2024-10-11 06:24:21,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865191959] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:21,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:21,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 06:24:21,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716073821] [2024-10-11 06:24:21,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:21,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 06:24:21,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:21,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 06:24:21,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 06:24:21,257 INFO L87 Difference]: Start difference. First operand 914 states and 1346 transitions. Second operand has 5 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 0 states have call successors, (0), 0 states 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 06:24:21,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:21,940 INFO L93 Difference]: Finished difference Result 2482 states and 3651 transitions. [2024-10-11 06:24:21,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 06:24:21,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 0 states have call successors, (0), 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 418 [2024-10-11 06:24:21,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:21,949 INFO L225 Difference]: With dead ends: 2482 [2024-10-11 06:24:21,953 INFO L226 Difference]: Without dead ends: 918 [2024-10-11 06:24:21,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 06:24:21,957 INFO L432 NwaCegarLoop]: 1622 mSDtfsCounter, 706 mSDsluCounter, 4082 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 5704 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:21,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 5704 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 06:24:21,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2024-10-11 06:24:21,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 916. [2024-10-11 06:24:21,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 915 states have (on average 1.473224043715847) internal successors, (1348), 915 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states 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 06:24:21,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1348 transitions. [2024-10-11 06:24:21,982 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1348 transitions. Word has length 418 [2024-10-11 06:24:21,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:21,983 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1348 transitions. [2024-10-11 06:24:21,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 0 states have call successors, (0), 0 states 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 06:24:21,983 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1348 transitions. [2024-10-11 06:24:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2024-10-11 06:24:21,988 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:21,988 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:21,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 06:24:21,989 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:21,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:21,989 INFO L85 PathProgramCache]: Analyzing trace with hash -457549109, now seen corresponding path program 1 times [2024-10-11 06:24:21,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:21,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503264975] [2024-10-11 06:24:21,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:21,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:24,699 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 06:24:24,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:24,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503264975] [2024-10-11 06:24:24,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503264975] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:24,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:24,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 06:24:24,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453525843] [2024-10-11 06:24:24,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:24,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:24,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:24,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:24,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:24,702 INFO L87 Difference]: Start difference. First operand 916 states and 1348 transitions. Second operand has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states 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 06:24:25,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:25,565 INFO L93 Difference]: Finished difference Result 3103 states and 4554 transitions. [2024-10-11 06:24:25,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:25,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 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 419 [2024-10-11 06:24:25,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:25,575 INFO L225 Difference]: With dead ends: 3103 [2024-10-11 06:24:25,576 INFO L226 Difference]: Without dead ends: 2256 [2024-10-11 06:24:25,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:25,578 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 1314 mSDsluCounter, 4262 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 5904 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:25,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 5904 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 06:24:25,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2024-10-11 06:24:25,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 1990. [2024-10-11 06:24:25,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1989 states have (on average 1.4645550527903468) internal successors, (2913), 1989 states have internal predecessors, (2913), 0 states have call successors, (0), 0 states 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 06:24:25,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2913 transitions. [2024-10-11 06:24:25,627 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2913 transitions. Word has length 419 [2024-10-11 06:24:25,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:25,628 INFO L471 AbstractCegarLoop]: Abstraction has 1990 states and 2913 transitions. [2024-10-11 06:24:25,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states 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 06:24:25,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2913 transitions. [2024-10-11 06:24:25,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2024-10-11 06:24:25,633 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:25,634 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:25,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 06:24:25,634 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:25,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:25,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1911519790, now seen corresponding path program 1 times [2024-10-11 06:24:25,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:25,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048707666] [2024-10-11 06:24:25,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:25,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:26,581 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 06:24:26,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:26,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048707666] [2024-10-11 06:24:26,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048707666] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:26,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:26,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 06:24:26,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714871539] [2024-10-11 06:24:26,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:26,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:24:26,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:26,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:24:26,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:24:26,585 INFO L87 Difference]: Start difference. First operand 1990 states and 2913 transitions. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states 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 06:24:26,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:26,631 INFO L93 Difference]: Finished difference Result 3905 states and 5715 transitions. [2024-10-11 06:24:26,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:24:26,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 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 419 [2024-10-11 06:24:26,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:26,639 INFO L225 Difference]: With dead ends: 3905 [2024-10-11 06:24:26,640 INFO L226 Difference]: Without dead ends: 1990 [2024-10-11 06:24:26,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:24:26,643 INFO L432 NwaCegarLoop]: 1147 mSDtfsCounter, 4 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3427 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:26,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3427 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:24:26,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2024-10-11 06:24:26,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1510. [2024-10-11 06:24:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 1.4665341285619615) internal successors, (2213), 1509 states have internal predecessors, (2213), 0 states have call successors, (0), 0 states 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 06:24:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2213 transitions. [2024-10-11 06:24:26,672 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2213 transitions. Word has length 419 [2024-10-11 06:24:26,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:26,673 INFO L471 AbstractCegarLoop]: Abstraction has 1510 states and 2213 transitions. [2024-10-11 06:24:26,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states 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 06:24:26,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2213 transitions. [2024-10-11 06:24:26,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-10-11 06:24:26,677 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:26,678 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:26,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 06:24:26,678 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:26,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:26,679 INFO L85 PathProgramCache]: Analyzing trace with hash -86100749, now seen corresponding path program 1 times [2024-10-11 06:24:26,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:26,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406643316] [2024-10-11 06:24:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:26,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:28,897 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 06:24:28,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:28,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406643316] [2024-10-11 06:24:28,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406643316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:28,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:28,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 06:24:28,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334975914] [2024-10-11 06:24:28,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:28,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:28,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:28,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:28,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:28,902 INFO L87 Difference]: Start difference. First operand 1510 states and 2213 transitions. Second operand has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 06:24:29,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:29,630 INFO L93 Difference]: Finished difference Result 4754 states and 6952 transitions. [2024-10-11 06:24:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:29,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 0 states have call successors, (0), 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 420 [2024-10-11 06:24:29,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:29,643 INFO L225 Difference]: With dead ends: 4754 [2024-10-11 06:24:29,644 INFO L226 Difference]: Without dead ends: 3317 [2024-10-11 06:24:29,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:29,649 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 1471 mSDsluCounter, 4704 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 6344 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:29,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1471 Valid, 6344 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 06:24:29,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3317 states. [2024-10-11 06:24:29,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3317 to 2714. [2024-10-11 06:24:29,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2714 states, 2713 states have (on average 1.462956137117582) internal successors, (3969), 2713 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states 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 06:24:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 3969 transitions. [2024-10-11 06:24:29,704 INFO L78 Accepts]: Start accepts. Automaton has 2714 states and 3969 transitions. Word has length 420 [2024-10-11 06:24:29,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:29,705 INFO L471 AbstractCegarLoop]: Abstraction has 2714 states and 3969 transitions. [2024-10-11 06:24:29,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 06:24:29,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2714 states and 3969 transitions. [2024-10-11 06:24:29,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-10-11 06:24:29,713 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:29,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:29,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 06:24:29,713 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:29,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:29,714 INFO L85 PathProgramCache]: Analyzing trace with hash 87192919, now seen corresponding path program 1 times [2024-10-11 06:24:29,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:29,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311045941] [2024-10-11 06:24:29,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:29,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:31,707 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 06:24:31,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:31,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311045941] [2024-10-11 06:24:31,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311045941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:31,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:31,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 06:24:31,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776313700] [2024-10-11 06:24:31,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:31,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:31,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:31,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:31,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:31,711 INFO L87 Difference]: Start difference. First operand 2714 states and 3969 transitions. Second operand has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 0 states 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 06:24:32,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:32,563 INFO L93 Difference]: Finished difference Result 8366 states and 12220 transitions. [2024-10-11 06:24:32,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:32,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 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 421 [2024-10-11 06:24:32,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:32,582 INFO L225 Difference]: With dead ends: 8366 [2024-10-11 06:24:32,582 INFO L226 Difference]: Without dead ends: 5737 [2024-10-11 06:24:32,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:32,589 INFO L432 NwaCegarLoop]: 1463 mSDtfsCounter, 1130 mSDsluCounter, 4749 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 6212 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:32,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 6212 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 06:24:32,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5737 states. [2024-10-11 06:24:32,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5737 to 5154. [2024-10-11 06:24:32,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5154 states, 5153 states have (on average 1.4610906268193284) internal successors, (7529), 5153 states have internal predecessors, (7529), 0 states have call successors, (0), 0 states 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 06:24:32,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 7529 transitions. [2024-10-11 06:24:32,691 INFO L78 Accepts]: Start accepts. Automaton has 5154 states and 7529 transitions. Word has length 421 [2024-10-11 06:24:32,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:32,692 INFO L471 AbstractCegarLoop]: Abstraction has 5154 states and 7529 transitions. [2024-10-11 06:24:32,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 0 states 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 06:24:32,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states and 7529 transitions. [2024-10-11 06:24:32,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2024-10-11 06:24:32,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:32,704 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:32,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 06:24:32,704 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:32,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:32,705 INFO L85 PathProgramCache]: Analyzing trace with hash 997296858, now seen corresponding path program 1 times [2024-10-11 06:24:32,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:32,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115477746] [2024-10-11 06:24:32,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:32,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:34,289 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 06:24:34,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:34,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115477746] [2024-10-11 06:24:34,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115477746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:34,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:34,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 06:24:34,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704998002] [2024-10-11 06:24:34,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:34,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:34,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:34,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:34,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:34,293 INFO L87 Difference]: Start difference. First operand 5154 states and 7529 transitions. Second operand has 6 states, 6 states have (on average 70.33333333333333) internal successors, (422), 6 states have internal predecessors, (422), 0 states have call successors, (0), 0 states 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 06:24:34,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:34,934 INFO L93 Difference]: Finished difference Result 15674 states and 22882 transitions. [2024-10-11 06:24:34,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:34,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 70.33333333333333) internal successors, (422), 6 states have internal predecessors, (422), 0 states have call successors, (0), 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 422 [2024-10-11 06:24:34,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:34,968 INFO L225 Difference]: With dead ends: 15674 [2024-10-11 06:24:34,969 INFO L226 Difference]: Without dead ends: 10633 [2024-10-11 06:24:34,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:34,980 INFO L432 NwaCegarLoop]: 1461 mSDtfsCounter, 1474 mSDsluCounter, 4401 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 5862 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:34,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 5862 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 06:24:34,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10633 states. [2024-10-11 06:24:35,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10633 to 10066. [2024-10-11 06:24:35,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10066 states, 10065 states have (on average 1.460208643815201) internal successors, (14697), 10065 states have internal predecessors, (14697), 0 states have call successors, (0), 0 states 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 06:24:35,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10066 states to 10066 states and 14697 transitions. [2024-10-11 06:24:35,150 INFO L78 Accepts]: Start accepts. Automaton has 10066 states and 14697 transitions. Word has length 422 [2024-10-11 06:24:35,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:35,151 INFO L471 AbstractCegarLoop]: Abstraction has 10066 states and 14697 transitions. [2024-10-11 06:24:35,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.33333333333333) internal successors, (422), 6 states have internal predecessors, (422), 0 states have call successors, (0), 0 states 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 06:24:35,151 INFO L276 IsEmpty]: Start isEmpty. Operand 10066 states and 14697 transitions. [2024-10-11 06:24:35,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-10-11 06:24:35,171 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:35,171 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:35,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 06:24:35,172 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:35,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:35,172 INFO L85 PathProgramCache]: Analyzing trace with hash 136700621, now seen corresponding path program 1 times [2024-10-11 06:24:35,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:35,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146561781] [2024-10-11 06:24:35,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:35,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:37,117 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 06:24:37,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:37,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146561781] [2024-10-11 06:24:37,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146561781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:37,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:37,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 06:24:37,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323515157] [2024-10-11 06:24:37,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:37,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:37,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:37,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:37,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:37,120 INFO L87 Difference]: Start difference. First operand 10066 states and 14697 transitions. Second operand has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 06:24:37,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:37,900 INFO L93 Difference]: Finished difference Result 19967 states and 29147 transitions. [2024-10-11 06:24:37,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:37,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 0 states have call successors, (0), 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 423 [2024-10-11 06:24:37,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:37,922 INFO L225 Difference]: With dead ends: 19967 [2024-10-11 06:24:37,923 INFO L226 Difference]: Without dead ends: 10074 [2024-10-11 06:24:37,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:37,937 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 825 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 3377 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:37,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 3377 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 06:24:37,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10074 states. [2024-10-11 06:24:38,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10074 to 10072. [2024-10-11 06:24:38,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10072 states, 10071 states have (on average 1.460133055307318) internal successors, (14705), 10071 states have internal predecessors, (14705), 0 states have call successors, (0), 0 states 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 06:24:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10072 states to 10072 states and 14705 transitions. [2024-10-11 06:24:38,093 INFO L78 Accepts]: Start accepts. Automaton has 10072 states and 14705 transitions. Word has length 423 [2024-10-11 06:24:38,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:38,094 INFO L471 AbstractCegarLoop]: Abstraction has 10072 states and 14705 transitions. [2024-10-11 06:24:38,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 06:24:38,095 INFO L276 IsEmpty]: Start isEmpty. Operand 10072 states and 14705 transitions. [2024-10-11 06:24:38,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-10-11 06:24:38,116 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:38,116 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:38,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 06:24:38,116 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:38,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:38,117 INFO L85 PathProgramCache]: Analyzing trace with hash -373106264, now seen corresponding path program 1 times [2024-10-11 06:24:38,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:38,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827390421] [2024-10-11 06:24:38,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:38,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:40,355 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 06:24:40,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:40,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827390421] [2024-10-11 06:24:40,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827390421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:40,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:40,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 06:24:40,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157220118] [2024-10-11 06:24:40,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:40,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:40,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:40,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:40,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:40,358 INFO L87 Difference]: Start difference. First operand 10072 states and 14705 transitions. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 5 states have internal predecessors, (424), 0 states have call successors, (0), 0 states 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 06:24:41,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:41,200 INFO L93 Difference]: Finished difference Result 19973 states and 29154 transitions. [2024-10-11 06:24:41,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:41,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 5 states have internal predecessors, (424), 0 states have call successors, (0), 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 424 [2024-10-11 06:24:41,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:41,224 INFO L225 Difference]: With dead ends: 19973 [2024-10-11 06:24:41,224 INFO L226 Difference]: Without dead ends: 10074 [2024-10-11 06:24:41,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:41,239 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 789 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 3377 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:41,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 3377 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 06:24:41,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10074 states. [2024-10-11 06:24:41,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10074 to 10073. [2024-10-11 06:24:41,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10073 states, 10072 states have (on average 1.460087370929309) internal successors, (14706), 10072 states have internal predecessors, (14706), 0 states have call successors, (0), 0 states 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 06:24:41,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10073 states to 10073 states and 14706 transitions. [2024-10-11 06:24:41,389 INFO L78 Accepts]: Start accepts. Automaton has 10073 states and 14706 transitions. Word has length 424 [2024-10-11 06:24:41,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:41,390 INFO L471 AbstractCegarLoop]: Abstraction has 10073 states and 14706 transitions. [2024-10-11 06:24:41,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 5 states have internal predecessors, (424), 0 states have call successors, (0), 0 states 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 06:24:41,390 INFO L276 IsEmpty]: Start isEmpty. Operand 10073 states and 14706 transitions. [2024-10-11 06:24:41,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-10-11 06:24:41,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:41,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:41,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-11 06:24:41,409 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:41,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:41,409 INFO L85 PathProgramCache]: Analyzing trace with hash 107667446, now seen corresponding path program 1 times [2024-10-11 06:24:41,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:41,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816532034] [2024-10-11 06:24:41,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:41,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:42,353 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 06:24:42,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:42,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816532034] [2024-10-11 06:24:42,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816532034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:42,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:42,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 06:24:42,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15684216] [2024-10-11 06:24:42,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:42,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:24:42,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:42,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:24:42,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:24:42,357 INFO L87 Difference]: Start difference. First operand 10073 states and 14706 transitions. Second operand has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states 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 06:24:42,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:42,439 INFO L93 Difference]: Finished difference Result 19975 states and 29156 transitions. [2024-10-11 06:24:42,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:24:42,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 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 424 [2024-10-11 06:24:42,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:42,457 INFO L225 Difference]: With dead ends: 19975 [2024-10-11 06:24:42,457 INFO L226 Difference]: Without dead ends: 10075 [2024-10-11 06:24:42,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:24:42,472 INFO L432 NwaCegarLoop]: 1147 mSDtfsCounter, 0 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3427 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:42,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3427 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:24:42,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10075 states. [2024-10-11 06:24:42,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10075 to 10075. [2024-10-11 06:24:42,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10075 states, 10074 states have (on average 1.459996029382569) internal successors, (14708), 10074 states have internal predecessors, (14708), 0 states have call successors, (0), 0 states 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 06:24:42,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10075 states to 10075 states and 14708 transitions. [2024-10-11 06:24:42,621 INFO L78 Accepts]: Start accepts. Automaton has 10075 states and 14708 transitions. Word has length 424 [2024-10-11 06:24:42,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:42,622 INFO L471 AbstractCegarLoop]: Abstraction has 10075 states and 14708 transitions. [2024-10-11 06:24:42,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states 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 06:24:42,623 INFO L276 IsEmpty]: Start isEmpty. Operand 10075 states and 14708 transitions. [2024-10-11 06:24:42,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2024-10-11 06:24:42,644 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:42,644 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:42,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-11 06:24:42,645 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:42,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:42,645 INFO L85 PathProgramCache]: Analyzing trace with hash -984707766, now seen corresponding path program 1 times [2024-10-11 06:24:42,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:42,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626580883] [2024-10-11 06:24:42,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:42,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:24:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:24:44,545 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 06:24:44,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:24:44,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626580883] [2024-10-11 06:24:44,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626580883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:24:44,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:24:44,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 06:24:44,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263919807] [2024-10-11 06:24:44,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:24:44,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:24:44,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:24:44,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:24:44,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:44,548 INFO L87 Difference]: Start difference. First operand 10075 states and 14708 transitions. Second operand has 6 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 0 states have call successors, (0), 0 states 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 06:24:45,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:24:45,285 INFO L93 Difference]: Finished difference Result 19985 states and 29169 transitions. [2024-10-11 06:24:45,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 06:24:45,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 0 states have call successors, (0), 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 425 [2024-10-11 06:24:45,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:24:45,302 INFO L225 Difference]: With dead ends: 19985 [2024-10-11 06:24:45,302 INFO L226 Difference]: Without dead ends: 10083 [2024-10-11 06:24:45,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:24:45,316 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 805 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 3377 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 06:24:45,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 3377 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 06:24:45,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10083 states. [2024-10-11 06:24:45,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10083 to 10081. [2024-10-11 06:24:45,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10081 states, 10080 states have (on average 1.4599206349206348) internal successors, (14716), 10080 states have internal predecessors, (14716), 0 states have call successors, (0), 0 states 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 06:24:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10081 states to 10081 states and 14716 transitions. [2024-10-11 06:24:45,462 INFO L78 Accepts]: Start accepts. Automaton has 10081 states and 14716 transitions. Word has length 425 [2024-10-11 06:24:45,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:24:45,463 INFO L471 AbstractCegarLoop]: Abstraction has 10081 states and 14716 transitions. [2024-10-11 06:24:45,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 0 states have call successors, (0), 0 states 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 06:24:45,464 INFO L276 IsEmpty]: Start isEmpty. Operand 10081 states and 14716 transitions. [2024-10-11 06:24:45,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2024-10-11 06:24:45,478 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:24:45,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:45,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-11 06:24:45,479 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:24:45,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:24:45,480 INFO L85 PathProgramCache]: Analyzing trace with hash -84213869, now seen corresponding path program 1 times [2024-10-11 06:24:45,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:24:45,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204981826] [2024-10-11 06:24:45,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:24:45,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms