./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.6.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.6.prop1-back-serstep.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4a2cf498326690bdbcaf7dd6a1a5eae1e3d6b717f0e68f16be3b8746d90e7c85 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 21:40:01,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 21:40:01,975 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-16 21:40:01,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 21:40:01,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 21:40:01,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 21:40:01,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 21:40:01,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 21:40:01,999 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 21:40:01,999 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 21:40:02,000 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 21:40:02,000 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 21:40:02,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 21:40:02,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 21:40:02,000 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 21:40:02,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 21:40:02,000 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 21:40:02,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 21:40:02,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 21:40:02,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 21:40:02,001 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 21:40:02,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 21:40:02,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 21:40:02,001 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 21:40:02,001 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 21:40:02,001 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 21:40:02,001 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 21:40:02,001 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 21:40:02,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 21:40:02,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 21:40:02,002 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 21:40:02,002 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 21:40:02,002 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 21:40:02,002 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 21:40:02,002 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 21:40:02,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 21:40:02,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 21:40:02,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 21:40:02,002 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 21:40:02,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 21:40:02,002 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a2cf498326690bdbcaf7dd6a1a5eae1e3d6b717f0e68f16be3b8746d90e7c85 [2025-03-16 21:40:02,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 21:40:02,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 21:40:02,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 21:40:02,232 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 21:40:02,232 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 21:40:02,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.6.prop1-back-serstep.c [2025-03-16 21:40:03,324 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f38d87e/25b2324007bd4207b007828cb4f1fecb/FLAGf74509a3c [2025-03-16 21:40:03,668 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 21:40:03,668 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.6.prop1-back-serstep.c [2025-03-16 21:40:03,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f38d87e/25b2324007bd4207b007828cb4f1fecb/FLAGf74509a3c [2025-03-16 21:40:03,705 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f38d87e/25b2324007bd4207b007828cb4f1fecb [2025-03-16 21:40:03,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 21:40:03,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 21:40:03,708 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 21:40:03,708 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 21:40:03,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 21:40:03,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 09:40:03" (1/1) ... [2025-03-16 21:40:03,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fe0a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:03, skipping insertion in model container [2025-03-16 21:40:03,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 09:40:03" (1/1) ... [2025-03-16 21:40:03,768 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 21:40:03,952 WARN L250 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.collision.6.prop1-back-serstep.c[1177,1190] [2025-03-16 21:40:04,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 21:40:04,480 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 21:40:04,486 WARN L250 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.collision.6.prop1-back-serstep.c[1177,1190] [2025-03-16 21:40:04,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 21:40:04,832 INFO L204 MainTranslator]: Completed translation [2025-03-16 21:40:04,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04 WrapperNode [2025-03-16 21:40:04,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 21:40:04,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 21:40:04,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 21:40:04,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 21:40:04,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (1/1) ... [2025-03-16 21:40:04,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (1/1) ... [2025-03-16 21:40:06,044 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20066 [2025-03-16 21:40:06,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 21:40:06,045 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 21:40:06,045 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 21:40:06,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 21:40:06,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (1/1) ... [2025-03-16 21:40:06,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (1/1) ... [2025-03-16 21:40:06,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (1/1) ... [2025-03-16 21:40:06,696 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]. [2025-03-16 21:40:06,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (1/1) ... [2025-03-16 21:40:06,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (1/1) ... [2025-03-16 21:40:07,029 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (1/1) ... [2025-03-16 21:40:07,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (1/1) ... [2025-03-16 21:40:07,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (1/1) ... [2025-03-16 21:40:07,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (1/1) ... [2025-03-16 21:40:07,384 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 21:40:07,385 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 21:40:07,385 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 21:40:07,385 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 21:40:07,386 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (1/1) ... [2025-03-16 21:40:07,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 21:40:07,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 21:40:07,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 21:40:07,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 21:40:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 21:40:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 21:40:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 21:40:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 21:40:08,071 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 21:40:08,072 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 21:40:51,257 INFO L? ?]: Removed 10066 outVars from TransFormulas that were not future-live. [2025-03-16 21:40:51,257 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 21:40:51,655 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 21:40:51,655 INFO L336 CfgBuilder]: Removed 27 assume(true) statements. [2025-03-16 21:40:51,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 09:40:51 BoogieIcfgContainer [2025-03-16 21:40:51,656 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 21:40:51,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 21:40:51,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 21:40:51,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 21:40:51,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 09:40:03" (1/3) ... [2025-03-16 21:40:51,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27241284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:40:51, skipping insertion in model container [2025-03-16 21:40:51,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:04" (2/3) ... [2025-03-16 21:40:51,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27241284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:40:51, skipping insertion in model container [2025-03-16 21:40:51,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 09:40:51" (3/3) ... [2025-03-16 21:40:51,665 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.collision.6.prop1-back-serstep.c [2025-03-16 21:40:51,677 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 21:40:51,679 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.collision.6.prop1-back-serstep.c that has 1 procedures, 7419 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-16 21:40:51,829 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 21:40:51,836 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;@7f1bd27f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 21:40:51,837 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 21:40:51,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 7419 states, 7417 states have (on average 1.510314143184576) internal successors, (11202), 7418 states have internal predecessors, (11202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:40:51,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2025-03-16 21:40:51,877 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 21:40:51,878 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 21:40:51,879 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 21:40:51,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 21:40:51,883 INFO L85 PathProgramCache]: Analyzing trace with hash -730291777, now seen corresponding path program 1 times [2025-03-16 21:40:51,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 21:40:51,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407713989] [2025-03-16 21:40:51,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 21:40:51,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 21:40:52,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 444 statements into 1 equivalence classes. [2025-03-16 21:40:52,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 444 of 444 statements. [2025-03-16 21:40:52,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 21:40:52,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 21:40:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 21:40:54,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 21:40:54,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407713989] [2025-03-16 21:40:54,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407713989] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 21:40:54,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 21:40:54,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 21:40:54,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167271981] [2025-03-16 21:40:54,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 21:40:54,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 21:40:54,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 21:40:54,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 21:40:54,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 21:40:54,078 INFO L87 Difference]: Start difference. First operand has 7419 states, 7417 states have (on average 1.510314143184576) internal successors, (11202), 7418 states have internal predecessors, (11202), 0 states have call successors, (0), 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 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:40:57,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 21:40:57,351 INFO L93 Difference]: Finished difference Result 14629 states and 22093 transitions. [2025-03-16 21:40:57,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 21:40:57,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 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 444 [2025-03-16 21:40:57,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 21:40:57,390 INFO L225 Difference]: With dead ends: 14629 [2025-03-16 21:40:57,390 INFO L226 Difference]: Without dead ends: 7419 [2025-03-16 21:40:57,403 INFO L434 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 [2025-03-16 21:40:57,405 INFO L435 NwaCegarLoop]: 9369 mSDtfsCounter, 0 mSDsluCounter, 18733 mSDsCounter, 0 mSdLazyCounter, 5494 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28102 SdHoareTripleChecker+Invalid, 5494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2025-03-16 21:40:57,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28102 Invalid, 5494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5494 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2025-03-16 21:40:57,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7419 states. [2025-03-16 21:40:57,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7419 to 7419. [2025-03-16 21:40:57,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7419 states, 7418 states have (on average 1.5099757346993798) internal successors, (11201), 7418 states have internal predecessors, (11201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:40:57,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7419 states to 7419 states and 11201 transitions. [2025-03-16 21:40:57,580 INFO L78 Accepts]: Start accepts. Automaton has 7419 states and 11201 transitions. Word has length 444 [2025-03-16 21:40:57,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 21:40:57,583 INFO L471 AbstractCegarLoop]: Abstraction has 7419 states and 11201 transitions. [2025-03-16 21:40:57,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:40:57,584 INFO L276 IsEmpty]: Start isEmpty. Operand 7419 states and 11201 transitions. [2025-03-16 21:40:57,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2025-03-16 21:40:57,590 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 21:40:57,591 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 21:40:57,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 21:40:57,591 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 21:40:57,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 21:40:57,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1159517983, now seen corresponding path program 1 times [2025-03-16 21:40:57,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 21:40:57,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252906954] [2025-03-16 21:40:57,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 21:40:57,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 21:40:57,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 445 statements into 1 equivalence classes. [2025-03-16 21:40:57,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 445 of 445 statements. [2025-03-16 21:40:57,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 21:40:57,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 21:40:58,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 21:40:58,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 21:40:58,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252906954] [2025-03-16 21:40:58,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252906954] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 21:40:58,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 21:40:58,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 21:40:58,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044238774] [2025-03-16 21:40:58,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 21:40:58,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 21:40:58,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 21:40:58,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 21:40:58,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 21:40:58,292 INFO L87 Difference]: Start difference. First operand 7419 states and 11201 transitions. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:41:00,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 21:41:00,816 INFO L93 Difference]: Finished difference Result 14631 states and 22092 transitions. [2025-03-16 21:41:00,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 21:41:00,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 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 445 [2025-03-16 21:41:00,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 21:41:00,835 INFO L225 Difference]: With dead ends: 14631 [2025-03-16 21:41:00,835 INFO L226 Difference]: Without dead ends: 7421 [2025-03-16 21:41:00,842 INFO L434 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 [2025-03-16 21:41:00,843 INFO L435 NwaCegarLoop]: 9369 mSDtfsCounter, 0 mSDsluCounter, 18730 mSDsCounter, 0 mSdLazyCounter, 5497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28099 SdHoareTripleChecker+Invalid, 5497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-16 21:41:00,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28099 Invalid, 5497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5497 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-03-16 21:41:00,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7421 states. [2025-03-16 21:41:00,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7421 to 7421. [2025-03-16 21:41:00,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7421 states, 7420 states have (on average 1.5098382749326145) internal successors, (11203), 7420 states have internal predecessors, (11203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:41:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7421 states to 7421 states and 11203 transitions. [2025-03-16 21:41:00,968 INFO L78 Accepts]: Start accepts. Automaton has 7421 states and 11203 transitions. Word has length 445 [2025-03-16 21:41:00,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 21:41:00,969 INFO L471 AbstractCegarLoop]: Abstraction has 7421 states and 11203 transitions. [2025-03-16 21:41:00,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:41:00,970 INFO L276 IsEmpty]: Start isEmpty. Operand 7421 states and 11203 transitions. [2025-03-16 21:41:00,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2025-03-16 21:41:00,976 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 21:41:00,976 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 21:41:00,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-16 21:41:00,977 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 21:41:00,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 21:41:00,980 INFO L85 PathProgramCache]: Analyzing trace with hash 346201594, now seen corresponding path program 1 times [2025-03-16 21:41:00,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 21:41:00,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084920021] [2025-03-16 21:41:00,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 21:41:00,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 21:41:01,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 446 statements into 1 equivalence classes. [2025-03-16 21:41:01,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 446 of 446 statements. [2025-03-16 21:41:01,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 21:41:01,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 21:41:01,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 21:41:01,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 21:41:01,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084920021] [2025-03-16 21:41:01,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084920021] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 21:41:01,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 21:41:01,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 21:41:01,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885540510] [2025-03-16 21:41:01,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 21:41:01,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 21:41:01,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 21:41:01,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 21:41:01,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 21:41:01,655 INFO L87 Difference]: Start difference. First operand 7421 states and 11203 transitions. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:41:03,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 21:41:03,708 INFO L93 Difference]: Finished difference Result 14635 states and 22096 transitions. [2025-03-16 21:41:03,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 21:41:03,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 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 446 [2025-03-16 21:41:03,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 21:41:03,724 INFO L225 Difference]: With dead ends: 14635 [2025-03-16 21:41:03,724 INFO L226 Difference]: Without dead ends: 7423 [2025-03-16 21:41:03,729 INFO L434 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 [2025-03-16 21:41:03,730 INFO L435 NwaCegarLoop]: 9369 mSDtfsCounter, 0 mSDsluCounter, 18730 mSDsCounter, 0 mSdLazyCounter, 5497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28099 SdHoareTripleChecker+Invalid, 5497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-16 21:41:03,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28099 Invalid, 5497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5497 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-16 21:41:03,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7423 states. [2025-03-16 21:41:03,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7423 to 7423. [2025-03-16 21:41:03,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7423 states, 7422 states have (on average 1.5097008892481811) internal successors, (11205), 7422 states have internal predecessors, (11205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:41:03,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7423 states to 7423 states and 11205 transitions. [2025-03-16 21:41:03,821 INFO L78 Accepts]: Start accepts. Automaton has 7423 states and 11205 transitions. Word has length 446 [2025-03-16 21:41:03,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 21:41:03,822 INFO L471 AbstractCegarLoop]: Abstraction has 7423 states and 11205 transitions. [2025-03-16 21:41:03,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:41:03,822 INFO L276 IsEmpty]: Start isEmpty. Operand 7423 states and 11205 transitions. [2025-03-16 21:41:03,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2025-03-16 21:41:03,827 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 21:41:03,828 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 21:41:03,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-16 21:41:03,828 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 21:41:03,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 21:41:03,829 INFO L85 PathProgramCache]: Analyzing trace with hash -264278490, now seen corresponding path program 1 times [2025-03-16 21:41:03,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 21:41:03,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861770899] [2025-03-16 21:41:03,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 21:41:03,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 21:41:03,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 447 statements into 1 equivalence classes. [2025-03-16 21:41:03,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 447 of 447 statements. [2025-03-16 21:41:03,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 21:41:03,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 21:41:04,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 21:41:04,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 21:41:04,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861770899] [2025-03-16 21:41:04,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861770899] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 21:41:04,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 21:41:04,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 21:41:04,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389788771] [2025-03-16 21:41:04,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 21:41:04,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 21:41:04,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 21:41:04,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 21:41:04,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-16 21:41:04,498 INFO L87 Difference]: Start difference. First operand 7423 states and 11205 transitions. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 5 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:41:08,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 21:41:08,556 INFO L93 Difference]: Finished difference Result 21837 states and 32970 transitions. [2025-03-16 21:41:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 21:41:08,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 5 states have internal predecessors, (447), 0 states have call successors, (0), 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 447 [2025-03-16 21:41:08,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 21:41:08,582 INFO L225 Difference]: With dead ends: 21837 [2025-03-16 21:41:08,583 INFO L226 Difference]: Without dead ends: 14623 [2025-03-16 21:41:08,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-16 21:41:08,594 INFO L435 NwaCegarLoop]: 9367 mSDtfsCounter, 10744 mSDsluCounter, 37197 mSDsCounter, 0 mSdLazyCounter, 9118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10744 SdHoareTripleChecker+Valid, 46564 SdHoareTripleChecker+Invalid, 9119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2025-03-16 21:41:08,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10744 Valid, 46564 Invalid, 9119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 9118 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2025-03-16 21:41:08,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14623 states. [2025-03-16 21:41:08,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14623 to 8087. [2025-03-16 21:41:08,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8087 states, 8086 states have (on average 1.508904279000742) internal successors, (12201), 8086 states have internal predecessors, (12201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:41:08,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8087 states to 8087 states and 12201 transitions. [2025-03-16 21:41:08,739 INFO L78 Accepts]: Start accepts. Automaton has 8087 states and 12201 transitions. Word has length 447 [2025-03-16 21:41:08,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 21:41:08,741 INFO L471 AbstractCegarLoop]: Abstraction has 8087 states and 12201 transitions. [2025-03-16 21:41:08,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 5 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 21:41:08,741 INFO L276 IsEmpty]: Start isEmpty. Operand 8087 states and 12201 transitions. [2025-03-16 21:41:08,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3769 [2025-03-16 21:41:08,972 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 21:41:08,974 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 21:41:08,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-16 21:41:08,975 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 21:41:08,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 21:41:08,983 INFO L85 PathProgramCache]: Analyzing trace with hash -262635086, now seen corresponding path program 1 times [2025-03-16 21:41:08,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 21:41:08,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201727170] [2025-03-16 21:41:08,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 21:41:08,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 21:41:09,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3768 statements into 1 equivalence classes. [2025-03-16 21:41:15,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3768 of 3768 statements. [2025-03-16 21:41:15,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 21:41:15,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat