./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.vis_arrays_vsaR_p06.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.vis_arrays_vsaR_p06.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 a95ceeac0f165e2677b6b52117f2b2f85e3771ca9e25b04980e7e83596a8463f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 07:03:53,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 07:03:53,450 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 07:03:53,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 07:03:53,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 07:03:53,489 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 07:03:53,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 07:03:53,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 07:03:53,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 07:03:53,494 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 07:03:53,495 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 07:03:53,495 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 07:03:53,495 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 07:03:53,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 07:03:53,497 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 07:03:53,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 07:03:53,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 07:03:53,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 07:03:53,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 07:03:53,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 07:03:53,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 07:03:53,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 07:03:53,499 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 07:03:53,499 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 07:03:53,499 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 07:03:53,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 07:03:53,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 07:03:53,500 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 07:03:53,500 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 07:03:53,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 07:03:53,500 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 07:03:53,500 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 07:03:53,500 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 07:03:53,501 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 07:03:53,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 07:03:53,501 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 07:03:53,502 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 07:03:53,503 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 07:03:53,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 07:03:53,503 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a95ceeac0f165e2677b6b52117f2b2f85e3771ca9e25b04980e7e83596a8463f [2024-10-11 07:03:53,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 07:03:53,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 07:03:53,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 07:03:53,724 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 07:03:53,724 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 07:03:53,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c [2024-10-11 07:03:54,986 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 07:03:55,183 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 07:03:55,184 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c [2024-10-11 07:03:55,194 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a9f297c35/f7e1efdbb2bc4cf982a247b44c8860f5/FLAGb47722dbb [2024-10-11 07:03:55,205 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a9f297c35/f7e1efdbb2bc4cf982a247b44c8860f5 [2024-10-11 07:03:55,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 07:03:55,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 07:03:55,210 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 07:03:55,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 07:03:55,219 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 07:03:55,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:55,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9e1f463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55, skipping insertion in model container [2024-10-11 07:03:55,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:55,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 07:03:55,465 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.vis_arrays_vsaR_p06.c[1259,1272] [2024-10-11 07:03:55,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 07:03:55,690 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 07:03:55,698 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.vis_arrays_vsaR_p06.c[1259,1272] [2024-10-11 07:03:55,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 07:03:55,822 INFO L204 MainTranslator]: Completed translation [2024-10-11 07:03:55,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55 WrapperNode [2024-10-11 07:03:55,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 07:03:55,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 07:03:55,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 07:03:55,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 07:03:55,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:55,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:56,123 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2151 [2024-10-11 07:03:56,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 07:03:56,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 07:03:56,124 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 07:03:56,124 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 07:03:56,141 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:56,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:56,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:56,362 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 07:03:56,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:56,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:56,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:56,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:56,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:56,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:56,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 07:03:56,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 07:03:56,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 07:03:56,543 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 07:03:56,544 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (1/1) ... [2024-10-11 07:03:56,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 07:03:56,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:03:56,570 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 07:03:56,576 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 07:03:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 07:03:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 07:03:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 07:03:56,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 07:03:56,821 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 07:03:56,823 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 07:03:58,280 INFO L? ?]: Removed 1351 outVars from TransFormulas that were not future-live. [2024-10-11 07:03:58,281 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 07:03:58,332 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 07:03:58,332 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 07:03:58,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:03:58 BoogieIcfgContainer [2024-10-11 07:03:58,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 07:03:58,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 07:03:58,337 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 07:03:58,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 07:03:58,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:03:55" (1/3) ... [2024-10-11 07:03:58,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e7c9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:03:58, skipping insertion in model container [2024-10-11 07:03:58,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:03:55" (2/3) ... [2024-10-11 07:03:58,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e7c9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:03:58, skipping insertion in model container [2024-10-11 07:03:58,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:03:58" (3/3) ... [2024-10-11 07:03:58,342 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p06.c [2024-10-11 07:03:58,353 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 07:03:58,354 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 07:03:58,415 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 07:03:58,420 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;@375b9f9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 07:03:58,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 07:03:58,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 540 states, 538 states have (on average 1.5018587360594795) internal successors, (808), 539 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:03:58,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-11 07:03:58,429 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:03:58,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:03:58,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:03:58,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:03:58,435 INFO L85 PathProgramCache]: Analyzing trace with hash 651241602, now seen corresponding path program 1 times [2024-10-11 07:03:58,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:03:58,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954482541] [2024-10-11 07:03:58,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:03:58,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:03:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:03:58,981 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 07:03:58,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:03:58,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954482541] [2024-10-11 07:03:58,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954482541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:03:58,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:03:58,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:03:58,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181080954] [2024-10-11 07:03:58,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:03:58,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 07:03:58,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:03:59,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 07:03:59,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 07:03:59,010 INFO L87 Difference]: Start difference. First operand has 540 states, 538 states have (on average 1.5018587360594795) internal successors, (808), 539 states have internal predecessors, (808), 0 states have call successors, (0), 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 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:03:59,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:03:59,104 INFO L93 Difference]: Finished difference Result 1028 states and 1540 transitions. [2024-10-11 07:03:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 07:03:59,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2024-10-11 07:03:59,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:03:59,122 INFO L225 Difference]: With dead ends: 1028 [2024-10-11 07:03:59,123 INFO L226 Difference]: Without dead ends: 541 [2024-10-11 07:03:59,126 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 07:03:59,128 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 0 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2404 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 07:03:59,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2404 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:03:59,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-10-11 07:03:59,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-10-11 07:03:59,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 540 states have (on average 1.4962962962962962) internal successors, (808), 540 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:03:59,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 808 transitions. [2024-10-11 07:03:59,196 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 808 transitions. Word has length 46 [2024-10-11 07:03:59,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:03:59,196 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 808 transitions. [2024-10-11 07:03:59,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:03:59,196 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 808 transitions. [2024-10-11 07:03:59,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-11 07:03:59,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:03:59,197 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:03:59,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 07:03:59,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:03:59,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:03:59,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1284651392, now seen corresponding path program 1 times [2024-10-11 07:03:59,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:03:59,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112954311] [2024-10-11 07:03:59,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:03:59,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:03:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:03:59,373 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 07:03:59,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:03:59,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112954311] [2024-10-11 07:03:59,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112954311] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:03:59,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:03:59,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:03:59,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323812196] [2024-10-11 07:03:59,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:03:59,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 07:03:59,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:03:59,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 07:03:59,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 07:03:59,378 INFO L87 Difference]: Start difference. First operand 541 states and 808 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:03:59,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:03:59,410 INFO L93 Difference]: Finished difference Result 1031 states and 1540 transitions. [2024-10-11 07:03:59,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 07:03:59,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-10-11 07:03:59,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:03:59,413 INFO L225 Difference]: With dead ends: 1031 [2024-10-11 07:03:59,413 INFO L226 Difference]: Without dead ends: 543 [2024-10-11 07:03:59,415 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 07:03:59,417 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 0 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2401 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 07:03:59,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2401 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:03:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-11 07:03:59,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2024-10-11 07:03:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 542 states have (on average 1.4944649446494465) internal successors, (810), 542 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:03:59,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 810 transitions. [2024-10-11 07:03:59,440 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 810 transitions. Word has length 47 [2024-10-11 07:03:59,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:03:59,441 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 810 transitions. [2024-10-11 07:03:59,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:03:59,441 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 810 transitions. [2024-10-11 07:03:59,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-11 07:03:59,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:03:59,442 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:03:59,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 07:03:59,443 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:03:59,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:03:59,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2027514139, now seen corresponding path program 1 times [2024-10-11 07:03:59,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:03:59,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871319786] [2024-10-11 07:03:59,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:03:59,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:03:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:03:59,801 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 07:03:59,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:03:59,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871319786] [2024-10-11 07:03:59,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871319786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:03:59,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:03:59,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 07:03:59,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527347329] [2024-10-11 07:03:59,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:03:59,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 07:03:59,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:03:59,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 07:03:59,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:03:59,812 INFO L87 Difference]: Start difference. First operand 543 states and 810 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:03:59,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:03:59,891 INFO L93 Difference]: Finished difference Result 1049 states and 1565 transitions. [2024-10-11 07:03:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 07:03:59,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-10-11 07:03:59,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:03:59,893 INFO L225 Difference]: With dead ends: 1049 [2024-10-11 07:03:59,893 INFO L226 Difference]: Without dead ends: 559 [2024-10-11 07:03:59,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:03:59,896 INFO L432 NwaCegarLoop]: 801 mSDtfsCounter, 13 mSDsluCounter, 3192 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3993 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:03:59,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3993 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:03:59,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-10-11 07:03:59,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 556. [2024-10-11 07:03:59,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 555 states have (on average 1.491891891891892) internal successors, (828), 555 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:03:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 828 transitions. [2024-10-11 07:03:59,907 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 828 transitions. Word has length 48 [2024-10-11 07:03:59,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:03:59,907 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 828 transitions. [2024-10-11 07:03:59,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:03:59,908 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 828 transitions. [2024-10-11 07:03:59,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-11 07:03:59,910 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:03:59,910 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:03:59,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 07:03:59,911 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:03:59,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:03:59,912 INFO L85 PathProgramCache]: Analyzing trace with hash 883881731, now seen corresponding path program 1 times [2024-10-11 07:03:59,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:03:59,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631759394] [2024-10-11 07:03:59,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:03:59,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:03:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:00,203 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 07:04:00,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:00,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631759394] [2024-10-11 07:04:00,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631759394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:00,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:00,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 07:04:00,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59472315] [2024-10-11 07:04:00,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:00,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 07:04:00,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:00,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 07:04:00,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-11 07:04:00,206 INFO L87 Difference]: Start difference. First operand 556 states and 828 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:00,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:00,293 INFO L93 Difference]: Finished difference Result 1066 states and 1588 transitions. [2024-10-11 07:04:00,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 07:04:00,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-10-11 07:04:00,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:00,295 INFO L225 Difference]: With dead ends: 1066 [2024-10-11 07:04:00,296 INFO L226 Difference]: Without dead ends: 563 [2024-10-11 07:04:00,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:04:00,297 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 775 mSDsluCounter, 3170 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 3965 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:00,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 3965 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:00,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-10-11 07:04:00,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 561. [2024-10-11 07:04:00,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 560 states have (on average 1.4892857142857143) internal successors, (834), 560 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:00,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 834 transitions. [2024-10-11 07:04:00,306 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 834 transitions. Word has length 49 [2024-10-11 07:04:00,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:00,307 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 834 transitions. [2024-10-11 07:04:00,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:00,307 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 834 transitions. [2024-10-11 07:04:00,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-11 07:04:00,308 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:00,308 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:00,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 07:04:00,309 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:00,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:00,309 INFO L85 PathProgramCache]: Analyzing trace with hash -662684057, now seen corresponding path program 1 times [2024-10-11 07:04:00,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:00,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054898642] [2024-10-11 07:04:00,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:00,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:00,562 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 07:04:00,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:00,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054898642] [2024-10-11 07:04:00,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054898642] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:00,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:00,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:04:00,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125401374] [2024-10-11 07:04:00,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:00,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 07:04:00,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:00,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 07:04:00,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:04:00,565 INFO L87 Difference]: Start difference. First operand 561 states and 834 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:00,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:00,657 INFO L93 Difference]: Finished difference Result 1213 states and 1798 transitions. [2024-10-11 07:04:00,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 07:04:00,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-10-11 07:04:00,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:00,660 INFO L225 Difference]: With dead ends: 1213 [2024-10-11 07:04:00,660 INFO L226 Difference]: Without dead ends: 705 [2024-10-11 07:04:00,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 07:04:00,662 INFO L432 NwaCegarLoop]: 792 mSDtfsCounter, 1137 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:00,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 2377 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:00,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-10-11 07:04:00,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 573. [2024-10-11 07:04:00,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 572 states have (on average 1.486013986013986) internal successors, (850), 572 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:00,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 850 transitions. [2024-10-11 07:04:00,671 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 850 transitions. Word has length 49 [2024-10-11 07:04:00,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:00,673 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 850 transitions. [2024-10-11 07:04:00,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:00,673 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 850 transitions. [2024-10-11 07:04:00,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-11 07:04:00,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:00,674 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:00,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 07:04:00,674 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:00,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:00,674 INFO L85 PathProgramCache]: Analyzing trace with hash 915892774, now seen corresponding path program 1 times [2024-10-11 07:04:00,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:00,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732139309] [2024-10-11 07:04:00,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:00,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:00,907 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 07:04:00,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:00,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732139309] [2024-10-11 07:04:00,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732139309] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:00,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:00,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 07:04:00,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640422940] [2024-10-11 07:04:00,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:00,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 07:04:00,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:00,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 07:04:00,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 07:04:00,909 INFO L87 Difference]: Start difference. First operand 573 states and 850 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:00,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:00,971 INFO L93 Difference]: Finished difference Result 1090 states and 1618 transitions. [2024-10-11 07:04:00,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 07:04:00,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-10-11 07:04:00,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:00,973 INFO L225 Difference]: With dead ends: 1090 [2024-10-11 07:04:00,973 INFO L226 Difference]: Without dead ends: 582 [2024-10-11 07:04:00,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 07:04:00,975 INFO L432 NwaCegarLoop]: 799 mSDtfsCounter, 12 mSDsluCounter, 3981 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4780 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:00,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4780 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:04:00,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-10-11 07:04:00,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 581. [2024-10-11 07:04:00,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 580 states have (on average 1.4844827586206897) internal successors, (861), 580 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:00,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 861 transitions. [2024-10-11 07:04:00,985 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 861 transitions. Word has length 50 [2024-10-11 07:04:00,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:00,986 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 861 transitions. [2024-10-11 07:04:00,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:00,988 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 861 transitions. [2024-10-11 07:04:00,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-11 07:04:00,988 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:00,989 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:00,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 07:04:00,990 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:00,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:00,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2052434762, now seen corresponding path program 1 times [2024-10-11 07:04:00,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:00,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723621818] [2024-10-11 07:04:00,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:00,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:01,196 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 07:04:01,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:01,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723621818] [2024-10-11 07:04:01,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723621818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:01,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:01,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:04:01,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276318951] [2024-10-11 07:04:01,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:01,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 07:04:01,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:01,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 07:04:01,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:04:01,199 INFO L87 Difference]: Start difference. First operand 581 states and 861 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:01,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:01,239 INFO L93 Difference]: Finished difference Result 1105 states and 1638 transitions. [2024-10-11 07:04:01,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 07:04:01,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-10-11 07:04:01,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:01,241 INFO L225 Difference]: With dead ends: 1105 [2024-10-11 07:04:01,241 INFO L226 Difference]: Without dead ends: 585 [2024-10-11 07:04:01,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:04:01,242 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 779 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:01,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 2392 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:04:01,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-10-11 07:04:01,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2024-10-11 07:04:01,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 584 states have (on average 1.481164383561644) internal successors, (865), 584 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 865 transitions. [2024-10-11 07:04:01,275 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 865 transitions. Word has length 51 [2024-10-11 07:04:01,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:01,276 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 865 transitions. [2024-10-11 07:04:01,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 865 transitions. [2024-10-11 07:04:01,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-11 07:04:01,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:01,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:01,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 07:04:01,277 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:01,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:01,277 INFO L85 PathProgramCache]: Analyzing trace with hash 204265802, now seen corresponding path program 1 times [2024-10-11 07:04:01,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:01,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908253596] [2024-10-11 07:04:01,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:01,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:01,421 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 07:04:01,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:01,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908253596] [2024-10-11 07:04:01,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908253596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:01,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:01,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 07:04:01,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579488526] [2024-10-11 07:04:01,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:01,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 07:04:01,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:01,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 07:04:01,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 07:04:01,423 INFO L87 Difference]: Start difference. First operand 585 states and 865 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:01,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:01,543 INFO L93 Difference]: Finished difference Result 1245 states and 1839 transitions. [2024-10-11 07:04:01,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 07:04:01,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-10-11 07:04:01,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:01,547 INFO L225 Difference]: With dead ends: 1245 [2024-10-11 07:04:01,547 INFO L226 Difference]: Without dead ends: 727 [2024-10-11 07:04:01,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-11 07:04:01,549 INFO L432 NwaCegarLoop]: 791 mSDtfsCounter, 1133 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 3950 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:01,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 3950 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:01,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-10-11 07:04:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 599. [2024-10-11 07:04:01,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 598 states have (on average 1.4765886287625418) internal successors, (883), 598 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:01,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 883 transitions. [2024-10-11 07:04:01,564 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 883 transitions. Word has length 52 [2024-10-11 07:04:01,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:01,565 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 883 transitions. [2024-10-11 07:04:01,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:01,565 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 883 transitions. [2024-10-11 07:04:01,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-11 07:04:01,566 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:01,566 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:01,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 07:04:01,566 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:01,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:01,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1739316421, now seen corresponding path program 1 times [2024-10-11 07:04:01,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:01,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585763067] [2024-10-11 07:04:01,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:01,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:01,780 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 07:04:01,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:01,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585763067] [2024-10-11 07:04:01,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585763067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:01,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:01,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 07:04:01,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358379756] [2024-10-11 07:04:01,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:01,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 07:04:01,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:01,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 07:04:01,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:04:01,782 INFO L87 Difference]: Start difference. First operand 599 states and 883 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:01,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:01,917 INFO L93 Difference]: Finished difference Result 1304 states and 1925 transitions. [2024-10-11 07:04:01,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 07:04:01,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-10-11 07:04:01,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:01,920 INFO L225 Difference]: With dead ends: 1304 [2024-10-11 07:04:01,920 INFO L226 Difference]: Without dead ends: 775 [2024-10-11 07:04:01,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:04:01,921 INFO L432 NwaCegarLoop]: 789 mSDtfsCounter, 1340 mSDsluCounter, 2357 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:01,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 3146 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:01,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-10-11 07:04:01,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 586. [2024-10-11 07:04:01,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 585 states have (on average 1.4803418803418804) internal successors, (866), 585 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:01,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 866 transitions. [2024-10-11 07:04:01,929 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 866 transitions. Word has length 52 [2024-10-11 07:04:01,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:01,930 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 866 transitions. [2024-10-11 07:04:01,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:01,930 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 866 transitions. [2024-10-11 07:04:01,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-11 07:04:01,930 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:01,930 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:01,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 07:04:01,931 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:01,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:01,931 INFO L85 PathProgramCache]: Analyzing trace with hash 366190034, now seen corresponding path program 1 times [2024-10-11 07:04:01,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:01,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114144161] [2024-10-11 07:04:01,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:01,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:02,164 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 07:04:02,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:02,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114144161] [2024-10-11 07:04:02,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114144161] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:02,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:02,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 07:04:02,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081746742] [2024-10-11 07:04:02,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:02,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 07:04:02,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:02,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 07:04:02,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:04:02,166 INFO L87 Difference]: Start difference. First operand 586 states and 866 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:02,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:02,387 INFO L93 Difference]: Finished difference Result 1226 states and 1810 transitions. [2024-10-11 07:04:02,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 07:04:02,388 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-10-11 07:04:02,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:02,390 INFO L225 Difference]: With dead ends: 1226 [2024-10-11 07:04:02,390 INFO L226 Difference]: Without dead ends: 708 [2024-10-11 07:04:02,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-10-11 07:04:02,392 INFO L432 NwaCegarLoop]: 787 mSDtfsCounter, 1139 mSDsluCounter, 4717 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 5504 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:02,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 5504 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:02,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-10-11 07:04:02,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 592. [2024-10-11 07:04:02,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 591 states have (on average 1.478849407783418) internal successors, (874), 591 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:02,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 874 transitions. [2024-10-11 07:04:02,401 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 874 transitions. Word has length 53 [2024-10-11 07:04:02,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:02,401 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 874 transitions. [2024-10-11 07:04:02,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:02,402 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 874 transitions. [2024-10-11 07:04:02,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 07:04:02,402 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:02,402 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:02,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 07:04:02,402 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:02,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:02,403 INFO L85 PathProgramCache]: Analyzing trace with hash 435077518, now seen corresponding path program 1 times [2024-10-11 07:04:02,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:02,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357205465] [2024-10-11 07:04:02,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:02,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:02,921 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 07:04:02,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:02,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357205465] [2024-10-11 07:04:02,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357205465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:02,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:02,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 07:04:02,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218600946] [2024-10-11 07:04:02,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:02,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 07:04:02,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:02,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 07:04:02,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-11 07:04:02,923 INFO L87 Difference]: Start difference. First operand 592 states and 874 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:03,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:03,237 INFO L93 Difference]: Finished difference Result 1124 states and 1662 transitions. [2024-10-11 07:04:03,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 07:04:03,237 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-10-11 07:04:03,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:03,239 INFO L225 Difference]: With dead ends: 1124 [2024-10-11 07:04:03,239 INFO L226 Difference]: Without dead ends: 606 [2024-10-11 07:04:03,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:04:03,241 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 802 mSDsluCounter, 7820 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 8603 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:03,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 8603 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:04:03,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-10-11 07:04:03,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 602. [2024-10-11 07:04:03,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 601 states have (on average 1.4792013311148087) internal successors, (889), 601 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:03,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 889 transitions. [2024-10-11 07:04:03,251 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 889 transitions. Word has length 54 [2024-10-11 07:04:03,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:03,251 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 889 transitions. [2024-10-11 07:04:03,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:03,252 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 889 transitions. [2024-10-11 07:04:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 07:04:03,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:03,252 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:03,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 07:04:03,253 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:03,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:03,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2127920752, now seen corresponding path program 1 times [2024-10-11 07:04:03,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:03,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343270088] [2024-10-11 07:04:03,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:03,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:03,529 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 07:04:03,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:03,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343270088] [2024-10-11 07:04:03,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343270088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:03,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:03,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:04:03,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954965595] [2024-10-11 07:04:03,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:03,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 07:04:03,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:03,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 07:04:03,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:04:03,531 INFO L87 Difference]: Start difference. First operand 602 states and 889 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:03,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:03,620 INFO L93 Difference]: Finished difference Result 1235 states and 1821 transitions. [2024-10-11 07:04:03,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 07:04:03,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-11 07:04:03,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:03,623 INFO L225 Difference]: With dead ends: 1235 [2024-10-11 07:04:03,623 INFO L226 Difference]: Without dead ends: 699 [2024-10-11 07:04:03,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:04:03,625 INFO L432 NwaCegarLoop]: 787 mSDtfsCounter, 930 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:03,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 2360 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:03,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-10-11 07:04:03,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 596. [2024-10-11 07:04:03,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 595 states have (on average 1.4789915966386555) internal successors, (880), 595 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:03,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 880 transitions. [2024-10-11 07:04:03,635 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 880 transitions. Word has length 55 [2024-10-11 07:04:03,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:03,635 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 880 transitions. [2024-10-11 07:04:03,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:03,636 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 880 transitions. [2024-10-11 07:04:03,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 07:04:03,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:03,636 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:03,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 07:04:03,637 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:03,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:03,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1505402384, now seen corresponding path program 1 times [2024-10-11 07:04:03,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:03,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958995620] [2024-10-11 07:04:03,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:03,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:04,024 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 07:04:04,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:04,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958995620] [2024-10-11 07:04:04,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958995620] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:04,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:04,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 07:04:04,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988239111] [2024-10-11 07:04:04,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:04,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 07:04:04,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:04,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 07:04:04,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-11 07:04:04,026 INFO L87 Difference]: Start difference. First operand 596 states and 880 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:04,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:04,282 INFO L93 Difference]: Finished difference Result 1239 states and 1828 transitions. [2024-10-11 07:04:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 07:04:04,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-11 07:04:04,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:04,285 INFO L225 Difference]: With dead ends: 1239 [2024-10-11 07:04:04,285 INFO L226 Difference]: Without dead ends: 711 [2024-10-11 07:04:04,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-10-11 07:04:04,288 INFO L432 NwaCegarLoop]: 787 mSDtfsCounter, 1119 mSDsluCounter, 4715 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 5502 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:04,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 5502 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:04,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-10-11 07:04:04,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 599. [2024-10-11 07:04:04,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 598 states have (on average 1.4782608695652173) internal successors, (884), 598 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:04,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 884 transitions. [2024-10-11 07:04:04,297 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 884 transitions. Word has length 55 [2024-10-11 07:04:04,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:04,298 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 884 transitions. [2024-10-11 07:04:04,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:04,298 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 884 transitions. [2024-10-11 07:04:04,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:04:04,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:04,298 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:04,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 07:04:04,299 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:04,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:04,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1766642156, now seen corresponding path program 1 times [2024-10-11 07:04:04,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:04,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640522639] [2024-10-11 07:04:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:04,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:04,492 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 07:04:04,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:04,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640522639] [2024-10-11 07:04:04,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640522639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:04,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:04,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:04:04,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707468840] [2024-10-11 07:04:04,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:04,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 07:04:04,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:04,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 07:04:04,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:04:04,494 INFO L87 Difference]: Start difference. First operand 599 states and 884 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:04,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:04,571 INFO L93 Difference]: Finished difference Result 1210 states and 1787 transitions. [2024-10-11 07:04:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 07:04:04,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:04:04,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:04,574 INFO L225 Difference]: With dead ends: 1210 [2024-10-11 07:04:04,574 INFO L226 Difference]: Without dead ends: 678 [2024-10-11 07:04:04,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:04:04,575 INFO L432 NwaCegarLoop]: 789 mSDtfsCounter, 1034 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:04,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 2363 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:04,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-10-11 07:04:04,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 595. [2024-10-11 07:04:04,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 594 states have (on average 1.4781144781144782) internal successors, (878), 594 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:04,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 878 transitions. [2024-10-11 07:04:04,584 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 878 transitions. Word has length 56 [2024-10-11 07:04:04,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:04,585 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 878 transitions. [2024-10-11 07:04:04,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:04,585 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 878 transitions. [2024-10-11 07:04:04,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-10-11 07:04:04,587 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:04,587 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:04,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 07:04:04,587 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:04,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:04,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1567774878, now seen corresponding path program 1 times [2024-10-11 07:04:04,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:04,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866616609] [2024-10-11 07:04:04,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:04,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:08,160 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:08,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:08,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866616609] [2024-10-11 07:04:08,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866616609] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:08,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:08,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 07:04:08,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613035127] [2024-10-11 07:04:08,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:08,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 07:04:08,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:08,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 07:04:08,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:04:08,163 INFO L87 Difference]: Start difference. First operand 595 states and 878 transitions. Second operand has 8 states, 8 states have (on average 37.125) internal successors, (297), 8 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:08,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:08,345 INFO L93 Difference]: Finished difference Result 1762 states and 2611 transitions. [2024-10-11 07:04:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 07:04:08,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 37.125) internal successors, (297), 8 states have internal predecessors, (297), 0 states have call successors, (0), 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 297 [2024-10-11 07:04:08,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:08,350 INFO L225 Difference]: With dead ends: 1762 [2024-10-11 07:04:08,350 INFO L226 Difference]: Without dead ends: 1234 [2024-10-11 07:04:08,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-11 07:04:08,352 INFO L432 NwaCegarLoop]: 947 mSDtfsCounter, 683 mSDsluCounter, 5514 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 6461 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:08,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 6461 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:08,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234 states. [2024-10-11 07:04:08,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234 to 1043. [2024-10-11 07:04:08,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 1042 states have (on average 1.4846449136276392) internal successors, (1547), 1042 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1547 transitions. [2024-10-11 07:04:08,367 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1547 transitions. Word has length 297 [2024-10-11 07:04:08,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:08,367 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1547 transitions. [2024-10-11 07:04:08,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 37.125) internal successors, (297), 8 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:08,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1547 transitions. [2024-10-11 07:04:08,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-10-11 07:04:08,370 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:08,370 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] [2024-10-11 07:04:08,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 07:04:08,371 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:08,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:08,371 INFO L85 PathProgramCache]: Analyzing trace with hash -719894847, now seen corresponding path program 1 times [2024-10-11 07:04:08,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:08,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756359798] [2024-10-11 07:04:08,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:08,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:10,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:10,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756359798] [2024-10-11 07:04:10,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756359798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:10,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:10,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 07:04:10,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020414720] [2024-10-11 07:04:10,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:10,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 07:04:10,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:10,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 07:04:10,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 07:04:10,855 INFO L87 Difference]: Start difference. First operand 1043 states and 1547 transitions. Second operand has 7 states, 7 states have (on average 42.42857142857143) internal successors, (297), 7 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:11,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:11,091 INFO L93 Difference]: Finished difference Result 3567 states and 5307 transitions. [2024-10-11 07:04:11,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 07:04:11,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.42857142857143) internal successors, (297), 7 states have internal predecessors, (297), 0 states have call successors, (0), 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 297 [2024-10-11 07:04:11,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:11,099 INFO L225 Difference]: With dead ends: 3567 [2024-10-11 07:04:11,099 INFO L226 Difference]: Without dead ends: 2589 [2024-10-11 07:04:11,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-11 07:04:11,101 INFO L432 NwaCegarLoop]: 1048 mSDtfsCounter, 961 mSDsluCounter, 4970 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 6018 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:11,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 6018 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:04:11,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2024-10-11 07:04:11,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 1925. [2024-10-11 07:04:11,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1924 states have (on average 1.4911642411642412) internal successors, (2869), 1924 states have internal predecessors, (2869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:11,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2869 transitions. [2024-10-11 07:04:11,141 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2869 transitions. Word has length 297 [2024-10-11 07:04:11,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:11,141 INFO L471 AbstractCegarLoop]: Abstraction has 1925 states and 2869 transitions. [2024-10-11 07:04:11,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.42857142857143) internal successors, (297), 7 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2869 transitions. [2024-10-11 07:04:11,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-10-11 07:04:11,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:11,146 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] [2024-10-11 07:04:11,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 07:04:11,146 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:11,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:11,146 INFO L85 PathProgramCache]: Analyzing trace with hash 37554336, now seen corresponding path program 1 times [2024-10-11 07:04:11,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:11,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544526209] [2024-10-11 07:04:11,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:11,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:13,153 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:13,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:13,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544526209] [2024-10-11 07:04:13,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544526209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:13,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:13,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 07:04:13,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524067837] [2024-10-11 07:04:13,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:13,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 07:04:13,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:13,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 07:04:13,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:04:13,156 INFO L87 Difference]: Start difference. First operand 1925 states and 2869 transitions. Second operand has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:13,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:13,301 INFO L93 Difference]: Finished difference Result 4116 states and 6132 transitions. [2024-10-11 07:04:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 07:04:13,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 0 states have call successors, (0), 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 298 [2024-10-11 07:04:13,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:13,308 INFO L225 Difference]: With dead ends: 4116 [2024-10-11 07:04:13,308 INFO L226 Difference]: Without dead ends: 2256 [2024-10-11 07:04:13,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:04:13,310 INFO L432 NwaCegarLoop]: 962 mSDtfsCounter, 680 mSDsluCounter, 3673 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 4635 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:13,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 4635 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:13,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2024-10-11 07:04:13,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 1925. [2024-10-11 07:04:13,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1924 states have (on average 1.4901247401247402) internal successors, (2867), 1924 states have internal predecessors, (2867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:13,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2867 transitions. [2024-10-11 07:04:13,336 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2867 transitions. Word has length 298 [2024-10-11 07:04:13,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:13,336 INFO L471 AbstractCegarLoop]: Abstraction has 1925 states and 2867 transitions. [2024-10-11 07:04:13,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:13,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2867 transitions. [2024-10-11 07:04:13,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-10-11 07:04:13,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:13,340 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:13,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 07:04:13,340 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:13,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:13,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1446403319, now seen corresponding path program 1 times [2024-10-11 07:04:13,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:13,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081195581] [2024-10-11 07:04:13,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:13,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:16,270 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:16,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:16,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081195581] [2024-10-11 07:04:16,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081195581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:16,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:16,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 07:04:16,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980725100] [2024-10-11 07:04:16,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:16,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 07:04:16,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:16,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 07:04:16,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:04:16,273 INFO L87 Difference]: Start difference. First operand 1925 states and 2867 transitions. Second operand has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 5 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:16,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:16,799 INFO L93 Difference]: Finished difference Result 3960 states and 5898 transitions. [2024-10-11 07:04:16,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 07:04:16,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 5 states have internal predecessors, (298), 0 states have call successors, (0), 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 298 [2024-10-11 07:04:16,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:16,804 INFO L225 Difference]: With dead ends: 3960 [2024-10-11 07:04:16,804 INFO L226 Difference]: Without dead ends: 2100 [2024-10-11 07:04:16,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:04:16,807 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 1076 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:16,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 2444 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 07:04:16,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2024-10-11 07:04:16,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1984. [2024-10-11 07:04:16,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1984 states, 1983 states have (on average 1.486636409480585) internal successors, (2948), 1983 states have internal predecessors, (2948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:16,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2948 transitions. [2024-10-11 07:04:16,835 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2948 transitions. Word has length 298 [2024-10-11 07:04:16,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:16,835 INFO L471 AbstractCegarLoop]: Abstraction has 1984 states and 2948 transitions. [2024-10-11 07:04:16,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 5 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:16,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2948 transitions. [2024-10-11 07:04:16,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-10-11 07:04:16,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:16,838 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] [2024-10-11 07:04:16,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 07:04:16,839 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:16,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:16,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1341433339, now seen corresponding path program 1 times [2024-10-11 07:04:16,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:16,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357180536] [2024-10-11 07:04:16,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:16,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:19,589 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:19,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:19,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357180536] [2024-10-11 07:04:19,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357180536] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:19,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:19,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 07:04:19,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30802529] [2024-10-11 07:04:19,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:19,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 07:04:19,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:19,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 07:04:19,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:04:19,592 INFO L87 Difference]: Start difference. First operand 1984 states and 2948 transitions. Second operand has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:19,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:19,739 INFO L93 Difference]: Finished difference Result 4475 states and 6658 transitions. [2024-10-11 07:04:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 07:04:19,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2024-10-11 07:04:19,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:19,746 INFO L225 Difference]: With dead ends: 4475 [2024-10-11 07:04:19,746 INFO L226 Difference]: Without dead ends: 2615 [2024-10-11 07:04:19,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:04:19,748 INFO L432 NwaCegarLoop]: 1057 mSDtfsCounter, 961 mSDsluCounter, 3949 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 5006 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:19,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 5006 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:19,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2024-10-11 07:04:19,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 1978. [2024-10-11 07:04:19,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1977 states have (on average 1.487101669195751) internal successors, (2940), 1977 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:19,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2940 transitions. [2024-10-11 07:04:19,777 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2940 transitions. Word has length 299 [2024-10-11 07:04:19,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:19,778 INFO L471 AbstractCegarLoop]: Abstraction has 1978 states and 2940 transitions. [2024-10-11 07:04:19,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:19,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2940 transitions. [2024-10-11 07:04:19,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-10-11 07:04:19,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:19,781 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] [2024-10-11 07:04:19,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 07:04:19,781 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:19,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:19,781 INFO L85 PathProgramCache]: Analyzing trace with hash 282800741, now seen corresponding path program 1 times [2024-10-11 07:04:19,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:19,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93017916] [2024-10-11 07:04:19,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:19,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 07:04:21,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:21,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93017916] [2024-10-11 07:04:21,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93017916] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:21,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:21,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 07:04:21,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238709586] [2024-10-11 07:04:21,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:21,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 07:04:21,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:21,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 07:04:21,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 07:04:21,607 INFO L87 Difference]: Start difference. First operand 1978 states and 2940 transitions. Second operand has 7 states, 7 states have (on average 42.57142857142857) internal successors, (298), 7 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:21,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:21,720 INFO L93 Difference]: Finished difference Result 3830 states and 5704 transitions. [2024-10-11 07:04:21,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 07:04:21,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.57142857142857) internal successors, (298), 7 states have internal predecessors, (298), 0 states have call successors, (0), 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 299 [2024-10-11 07:04:21,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:21,727 INFO L225 Difference]: With dead ends: 3830 [2024-10-11 07:04:21,727 INFO L226 Difference]: Without dead ends: 1976 [2024-10-11 07:04:21,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 07:04:21,729 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 13 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3970 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:21,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3970 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:21,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2024-10-11 07:04:21,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1976. [2024-10-11 07:04:21,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1975 states have (on average 1.4870886075949368) internal successors, (2937), 1975 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:21,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2937 transitions. [2024-10-11 07:04:21,753 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2937 transitions. Word has length 299 [2024-10-11 07:04:21,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:21,753 INFO L471 AbstractCegarLoop]: Abstraction has 1976 states and 2937 transitions. [2024-10-11 07:04:21,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.57142857142857) internal successors, (298), 7 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:21,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2937 transitions. [2024-10-11 07:04:21,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-10-11 07:04:21,756 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:21,757 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:21,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 07:04:21,758 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:21,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:21,758 INFO L85 PathProgramCache]: Analyzing trace with hash -372857559, now seen corresponding path program 1 times [2024-10-11 07:04:21,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:21,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362240525] [2024-10-11 07:04:21,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:21,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:23,621 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:23,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:23,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362240525] [2024-10-11 07:04:23,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362240525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:23,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:23,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:04:23,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629385312] [2024-10-11 07:04:23,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:23,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 07:04:23,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:23,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 07:04:23,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:04:23,625 INFO L87 Difference]: Start difference. First operand 1976 states and 2937 transitions. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:23,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:23,806 INFO L93 Difference]: Finished difference Result 4110 states and 6122 transitions. [2024-10-11 07:04:23,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 07:04:23,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2024-10-11 07:04:23,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:23,813 INFO L225 Difference]: With dead ends: 4110 [2024-10-11 07:04:23,813 INFO L226 Difference]: Without dead ends: 2236 [2024-10-11 07:04:23,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:04:23,816 INFO L432 NwaCegarLoop]: 750 mSDtfsCounter, 1016 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:23,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 2248 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:23,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2024-10-11 07:04:23,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 1976. [2024-10-11 07:04:23,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1975 states have (on average 1.4865822784810128) internal successors, (2936), 1975 states have internal predecessors, (2936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:23,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2936 transitions. [2024-10-11 07:04:23,848 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2936 transitions. Word has length 299 [2024-10-11 07:04:23,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:23,851 INFO L471 AbstractCegarLoop]: Abstraction has 1976 states and 2936 transitions. [2024-10-11 07:04:23,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:23,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2936 transitions. [2024-10-11 07:04:23,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-10-11 07:04:23,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:23,854 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:23,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 07:04:23,854 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:23,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:23,855 INFO L85 PathProgramCache]: Analyzing trace with hash 734649429, now seen corresponding path program 1 times [2024-10-11 07:04:23,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:23,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569715408] [2024-10-11 07:04:23,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:23,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:26,693 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:26,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:26,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569715408] [2024-10-11 07:04:26,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569715408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:26,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:26,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 07:04:26,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378552100] [2024-10-11 07:04:26,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:26,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 07:04:26,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:26,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 07:04:26,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-11 07:04:26,696 INFO L87 Difference]: Start difference. First operand 1976 states and 2936 transitions. Second operand has 11 states, 11 states have (on average 27.272727272727273) internal successors, (300), 11 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:26,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:26,954 INFO L93 Difference]: Finished difference Result 4169 states and 6201 transitions. [2024-10-11 07:04:26,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 07:04:26,956 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 27.272727272727273) internal successors, (300), 11 states have internal predecessors, (300), 0 states have call successors, (0), 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 300 [2024-10-11 07:04:26,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:26,970 INFO L225 Difference]: With dead ends: 4169 [2024-10-11 07:04:26,970 INFO L226 Difference]: Without dead ends: 2317 [2024-10-11 07:04:26,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-10-11 07:04:26,976 INFO L432 NwaCegarLoop]: 938 mSDtfsCounter, 692 mSDsluCounter, 7251 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 8189 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:26,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 8189 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:26,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2024-10-11 07:04:27,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 1988. [2024-10-11 07:04:27,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1987 states have (on average 1.48565676899849) internal successors, (2952), 1987 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:27,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2952 transitions. [2024-10-11 07:04:27,011 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2952 transitions. Word has length 300 [2024-10-11 07:04:27,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:27,012 INFO L471 AbstractCegarLoop]: Abstraction has 1988 states and 2952 transitions. [2024-10-11 07:04:27,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 27.272727272727273) internal successors, (300), 11 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:27,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2952 transitions. [2024-10-11 07:04:27,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-10-11 07:04:27,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:27,017 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:27,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 07:04:27,017 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:27,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:27,017 INFO L85 PathProgramCache]: Analyzing trace with hash 157151723, now seen corresponding path program 1 times [2024-10-11 07:04:27,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:27,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999864761] [2024-10-11 07:04:27,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:27,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 07:04:29,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:29,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999864761] [2024-10-11 07:04:29,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999864761] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 07:04:29,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654044539] [2024-10-11 07:04:29,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:29,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:04:29,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:04:29,583 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 07:04:29,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 07:04:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:30,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 2470 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-11 07:04:30,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 07:04:32,220 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:32,220 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 07:04:33,573 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 07:04:33,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654044539] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 07:04:33,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 07:04:33,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 6] total 13 [2024-10-11 07:04:33,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193587370] [2024-10-11 07:04:33,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 07:04:33,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 07:04:33,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:33,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 07:04:33,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-10-11 07:04:33,576 INFO L87 Difference]: Start difference. First operand 1988 states and 2952 transitions. Second operand has 14 states, 14 states have (on average 62.42857142857143) internal successors, (874), 13 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:34,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:34,246 INFO L93 Difference]: Finished difference Result 3865 states and 5746 transitions. [2024-10-11 07:04:34,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 07:04:34,247 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 62.42857142857143) internal successors, (874), 13 states have internal predecessors, (874), 0 states have call successors, (0), 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 300 [2024-10-11 07:04:34,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:34,253 INFO L225 Difference]: With dead ends: 3865 [2024-10-11 07:04:34,253 INFO L226 Difference]: Without dead ends: 2001 [2024-10-11 07:04:34,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-10-11 07:04:34,256 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 1784 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:34,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 4065 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 07:04:34,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2024-10-11 07:04:34,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1988. [2024-10-11 07:04:34,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1987 states have (on average 1.48565676899849) internal successors, (2952), 1987 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:34,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2952 transitions. [2024-10-11 07:04:34,277 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2952 transitions. Word has length 300 [2024-10-11 07:04:34,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:34,278 INFO L471 AbstractCegarLoop]: Abstraction has 1988 states and 2952 transitions. [2024-10-11 07:04:34,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 62.42857142857143) internal successors, (874), 13 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:34,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2952 transitions. [2024-10-11 07:04:34,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-10-11 07:04:34,281 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:34,281 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:34,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 07:04:34,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-11 07:04:34,482 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:34,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:34,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1806195673, now seen corresponding path program 1 times [2024-10-11 07:04:34,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:34,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602371290] [2024-10-11 07:04:34,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:34,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:37,792 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:37,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:37,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602371290] [2024-10-11 07:04:37,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602371290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:37,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:37,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:04:37,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239558157] [2024-10-11 07:04:37,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:37,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 07:04:37,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:37,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 07:04:37,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:04:37,793 INFO L87 Difference]: Start difference. First operand 1988 states and 2952 transitions. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:38,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:38,014 INFO L93 Difference]: Finished difference Result 3982 states and 5926 transitions. [2024-10-11 07:04:38,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 07:04:38,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 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 301 [2024-10-11 07:04:38,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:38,019 INFO L225 Difference]: With dead ends: 3982 [2024-10-11 07:04:38,020 INFO L226 Difference]: Without dead ends: 2096 [2024-10-11 07:04:38,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:04:38,022 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 1273 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:38,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 2239 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:04:38,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2024-10-11 07:04:38,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1966. [2024-10-11 07:04:38,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1965 states have (on average 1.4854961832061069) internal successors, (2919), 1965 states have internal predecessors, (2919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:38,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2919 transitions. [2024-10-11 07:04:38,041 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2919 transitions. Word has length 301 [2024-10-11 07:04:38,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:38,041 INFO L471 AbstractCegarLoop]: Abstraction has 1966 states and 2919 transitions. [2024-10-11 07:04:38,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:38,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2919 transitions. [2024-10-11 07:04:38,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-10-11 07:04:38,043 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:38,043 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:38,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 07:04:38,044 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:38,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:38,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1565657477, now seen corresponding path program 1 times [2024-10-11 07:04:38,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:38,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270426408] [2024-10-11 07:04:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:38,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:43,012 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:43,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:43,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270426408] [2024-10-11 07:04:43,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270426408] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 07:04:43,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294463290] [2024-10-11 07:04:43,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:43,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:04:43,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:04:43,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 07:04:43,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 07:04:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:44,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 2471 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-11 07:04:44,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 07:04:44,693 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:44,693 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 07:04:44,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294463290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:44,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 07:04:44,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2024-10-11 07:04:44,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172415547] [2024-10-11 07:04:44,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:44,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 07:04:44,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:44,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 07:04:44,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-10-11 07:04:44,695 INFO L87 Difference]: Start difference. First operand 1966 states and 2919 transitions. Second operand has 7 states, 7 states have (on average 43.0) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:45,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:45,076 INFO L93 Difference]: Finished difference Result 4598 states and 6850 transitions. [2024-10-11 07:04:45,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 07:04:45,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.0) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 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 301 [2024-10-11 07:04:45,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:45,080 INFO L225 Difference]: With dead ends: 4598 [2024-10-11 07:04:45,080 INFO L226 Difference]: Without dead ends: 2734 [2024-10-11 07:04:45,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-10-11 07:04:45,084 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 987 mSDsluCounter, 2075 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 2697 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:45,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 2697 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:04:45,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2024-10-11 07:04:45,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 1986. [2024-10-11 07:04:45,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1986 states, 1985 states have (on average 1.4826196473551638) internal successors, (2943), 1985 states have internal predecessors, (2943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:45,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2943 transitions. [2024-10-11 07:04:45,105 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2943 transitions. Word has length 301 [2024-10-11 07:04:45,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:45,105 INFO L471 AbstractCegarLoop]: Abstraction has 1986 states and 2943 transitions. [2024-10-11 07:04:45,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.0) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:45,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2943 transitions. [2024-10-11 07:04:45,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-10-11 07:04:45,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:45,107 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:45,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 07:04:45,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:04:45,308 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:45,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:45,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1048359809, now seen corresponding path program 1 times [2024-10-11 07:04:45,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:45,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088456961] [2024-10-11 07:04:45,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:45,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:50,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:50,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088456961] [2024-10-11 07:04:50,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088456961] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 07:04:50,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241722552] [2024-10-11 07:04:50,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:50,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:04:50,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:04:50,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 07:04:50,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 07:04:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:51,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 2474 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-11 07:04:51,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 07:04:52,212 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:52,213 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 07:04:53,186 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:53,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241722552] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 07:04:53,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 07:04:53,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 7] total 21 [2024-10-11 07:04:53,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271962153] [2024-10-11 07:04:53,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 07:04:53,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 07:04:53,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:53,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 07:04:53,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2024-10-11 07:04:53,189 INFO L87 Difference]: Start difference. First operand 1986 states and 2943 transitions. Second operand has 22 states, 22 states have (on average 40.27272727272727) internal successors, (886), 21 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:55,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:55,739 INFO L93 Difference]: Finished difference Result 8500 states and 12623 transitions. [2024-10-11 07:04:55,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-11 07:04:55,740 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 40.27272727272727) internal successors, (886), 21 states have internal predecessors, (886), 0 states have call successors, (0), 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 302 [2024-10-11 07:04:55,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:55,749 INFO L225 Difference]: With dead ends: 8500 [2024-10-11 07:04:55,749 INFO L226 Difference]: Without dead ends: 6616 [2024-10-11 07:04:55,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1093 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=711, Invalid=3845, Unknown=0, NotChecked=0, Total=4556 [2024-10-11 07:04:55,753 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 13513 mSDsluCounter, 7698 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13513 SdHoareTripleChecker+Valid, 8290 SdHoareTripleChecker+Invalid, 2997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:55,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13513 Valid, 8290 Invalid, 2997 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 07:04:55,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6616 states. [2024-10-11 07:04:55,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6616 to 4542. [2024-10-11 07:04:55,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4542 states, 4541 states have (on average 1.488879101519489) internal successors, (6761), 4541 states have internal predecessors, (6761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 6761 transitions. [2024-10-11 07:04:55,814 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 6761 transitions. Word has length 302 [2024-10-11 07:04:55,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:55,814 INFO L471 AbstractCegarLoop]: Abstraction has 4542 states and 6761 transitions. [2024-10-11 07:04:55,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 40.27272727272727) internal successors, (886), 21 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:55,815 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 6761 transitions. [2024-10-11 07:04:55,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-10-11 07:04:55,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:55,816 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:55,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 07:04:56,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:04:56,017 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:56,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:56,018 INFO L85 PathProgramCache]: Analyzing trace with hash 475564416, now seen corresponding path program 1 times [2024-10-11 07:04:56,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:56,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616055333] [2024-10-11 07:04:56,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:56,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:04:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:04:59,238 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:04:59,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:04:59,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616055333] [2024-10-11 07:04:59,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616055333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:04:59,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:04:59,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 07:04:59,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631863497] [2024-10-11 07:04:59,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:04:59,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 07:04:59,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:04:59,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 07:04:59,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-11 07:04:59,240 INFO L87 Difference]: Start difference. First operand 4542 states and 6761 transitions. Second operand has 11 states, 11 states have (on average 27.636363636363637) internal successors, (304), 11 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:59,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:04:59,436 INFO L93 Difference]: Finished difference Result 8637 states and 12860 transitions. [2024-10-11 07:04:59,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 07:04:59,436 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 27.636363636363637) internal successors, (304), 11 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2024-10-11 07:04:59,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:04:59,443 INFO L225 Difference]: With dead ends: 8637 [2024-10-11 07:04:59,443 INFO L226 Difference]: Without dead ends: 5053 [2024-10-11 07:04:59,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:04:59,447 INFO L432 NwaCegarLoop]: 936 mSDtfsCounter, 681 mSDsluCounter, 7237 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 8173 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:04:59,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 8173 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:04:59,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5053 states. [2024-10-11 07:04:59,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5053 to 4536. [2024-10-11 07:04:59,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4536 states, 4535 states have (on average 1.4890848952590958) internal successors, (6753), 4535 states have internal predecessors, (6753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:59,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 4536 states and 6753 transitions. [2024-10-11 07:04:59,490 INFO L78 Accepts]: Start accepts. Automaton has 4536 states and 6753 transitions. Word has length 304 [2024-10-11 07:04:59,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:04:59,490 INFO L471 AbstractCegarLoop]: Abstraction has 4536 states and 6753 transitions. [2024-10-11 07:04:59,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 27.636363636363637) internal successors, (304), 11 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:04:59,490 INFO L276 IsEmpty]: Start isEmpty. Operand 4536 states and 6753 transitions. [2024-10-11 07:04:59,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-10-11 07:04:59,492 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:04:59,492 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:04:59,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 07:04:59,493 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:04:59,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:04:59,493 INFO L85 PathProgramCache]: Analyzing trace with hash -814524288, now seen corresponding path program 1 times [2024-10-11 07:04:59,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:04:59,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063653453] [2024-10-11 07:04:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:04:59,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:05:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:05:03,099 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:05:03,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:05:03,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063653453] [2024-10-11 07:05:03,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063653453] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 07:05:03,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537633440] [2024-10-11 07:05:03,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:05:03,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:05:03,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:05:03,103 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 07:05:03,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 07:05:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:05:04,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 2476 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-10-11 07:05:04,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 07:05:04,676 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:05:04,676 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 07:05:04,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537633440] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:05:04,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 07:05:04,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2024-10-11 07:05:04,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157657058] [2024-10-11 07:05:04,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:05:04,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 07:05:04,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:05:04,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 07:05:04,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-10-11 07:05:04,678 INFO L87 Difference]: Start difference. First operand 4536 states and 6753 transitions. Second operand has 8 states, 8 states have (on average 38.0) internal successors, (304), 7 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:05:05,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:05:05,221 INFO L93 Difference]: Finished difference Result 9725 states and 14470 transitions. [2024-10-11 07:05:05,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 07:05:05,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 38.0) internal successors, (304), 7 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2024-10-11 07:05:05,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:05:05,228 INFO L225 Difference]: With dead ends: 9725 [2024-10-11 07:05:05,228 INFO L226 Difference]: Without dead ends: 5276 [2024-10-11 07:05:05,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-10-11 07:05:05,234 INFO L432 NwaCegarLoop]: 615 mSDtfsCounter, 937 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 3679 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 07:05:05,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 3679 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 07:05:05,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5276 states. [2024-10-11 07:05:05,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5276 to 4653. [2024-10-11 07:05:05,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4653 states, 4652 states have (on average 1.4832330180567497) internal successors, (6900), 4652 states have internal predecessors, (6900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:05:05,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4653 states to 4653 states and 6900 transitions. [2024-10-11 07:05:05,283 INFO L78 Accepts]: Start accepts. Automaton has 4653 states and 6900 transitions. Word has length 304 [2024-10-11 07:05:05,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:05:05,284 INFO L471 AbstractCegarLoop]: Abstraction has 4653 states and 6900 transitions. [2024-10-11 07:05:05,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.0) internal successors, (304), 7 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:05:05,285 INFO L276 IsEmpty]: Start isEmpty. Operand 4653 states and 6900 transitions. [2024-10-11 07:05:05,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-10-11 07:05:05,319 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:05:05,320 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:05:05,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 07:05:05,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-11 07:05:05,521 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:05:05,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:05:05,522 INFO L85 PathProgramCache]: Analyzing trace with hash 843026697, now seen corresponding path program 1 times [2024-10-11 07:05:05,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:05:05,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964135831] [2024-10-11 07:05:05,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:05:05,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:05:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:05:09,316 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:05:09,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:05:09,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964135831] [2024-10-11 07:05:09,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964135831] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 07:05:09,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462405307] [2024-10-11 07:05:09,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:05:09,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:05:09,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:05:09,318 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 07:05:09,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 07:05:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:05:10,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 2479 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-10-11 07:05:10,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 07:05:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:05:10,831 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 07:05:10,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462405307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:05:10,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 07:05:10,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2024-10-11 07:05:10,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846886252] [2024-10-11 07:05:10,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:05:10,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 07:05:10,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:05:10,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 07:05:10,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-10-11 07:05:10,835 INFO L87 Difference]: Start difference. First operand 4653 states and 6900 transitions. Second operand has 8 states, 8 states have (on average 38.125) internal successors, (305), 7 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:05:11,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:05:11,354 INFO L93 Difference]: Finished difference Result 9809 states and 14572 transitions. [2024-10-11 07:05:11,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 07:05:11,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 38.125) internal successors, (305), 7 states have internal predecessors, (305), 0 states have call successors, (0), 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 305 [2024-10-11 07:05:11,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:05:11,360 INFO L225 Difference]: With dead ends: 9809 [2024-10-11 07:05:11,361 INFO L226 Difference]: Without dead ends: 5261 [2024-10-11 07:05:11,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 300 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-10-11 07:05:11,365 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 953 mSDsluCounter, 3398 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 4098 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 07:05:11,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 4098 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 07:05:11,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2024-10-11 07:05:11,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 4653. [2024-10-11 07:05:11,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4653 states, 4652 states have (on average 1.4819432502149612) internal successors, (6894), 4652 states have internal predecessors, (6894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:05:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4653 states to 4653 states and 6894 transitions. [2024-10-11 07:05:11,406 INFO L78 Accepts]: Start accepts. Automaton has 4653 states and 6894 transitions. Word has length 305 [2024-10-11 07:05:11,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:05:11,406 INFO L471 AbstractCegarLoop]: Abstraction has 4653 states and 6894 transitions. [2024-10-11 07:05:11,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.125) internal successors, (305), 7 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:05:11,407 INFO L276 IsEmpty]: Start isEmpty. Operand 4653 states and 6894 transitions. [2024-10-11 07:05:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-10-11 07:05:11,409 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:05:11,409 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:05:11,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 07:05:11,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-11 07:05:11,610 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:05:11,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:05:11,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1466929617, now seen corresponding path program 1 times [2024-10-11 07:05:11,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:05:11,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433389559] [2024-10-11 07:05:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:05:11,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms