./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.6.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.6.prop1-back-serstep.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 a83e385f415384666366709a4ea365ea1ea963b8c9ea22be6df3be60f43844a0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 07:45:17,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 07:45:18,043 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 07:45:18,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 07:45:18,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 07:45:18,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 07:45:18,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 07:45:18,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 07:45:18,075 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 07:45:18,075 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 07:45:18,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 07:45:18,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 07:45:18,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 07:45:18,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 07:45:18,076 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 07:45:18,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 07:45:18,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 07:45:18,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 07:45:18,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 07:45:18,076 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 07:45:18,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 07:45:18,077 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 07:45:18,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 07:45:18,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 07:45:18,077 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 07:45:18,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 07:45:18,078 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-jdk21/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 -> a83e385f415384666366709a4ea365ea1ea963b8c9ea22be6df3be60f43844a0 [2025-01-09 07:45:18,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 07:45:18,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 07:45:18,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 07:45:18,311 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 07:45:18,311 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 07:45:18,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.6.prop1-back-serstep.c [2025-01-09 07:45:19,537 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5083890dc/89533033ff3346a7a747390cf61db1fd/FLAG457aa7f30 [2025-01-09 07:45:19,910 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 07:45:19,911 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.6.prop1-back-serstep.c [2025-01-09 07:45:19,928 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5083890dc/89533033ff3346a7a747390cf61db1fd/FLAG457aa7f30 [2025-01-09 07:45:19,943 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5083890dc/89533033ff3346a7a747390cf61db1fd [2025-01-09 07:45:19,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 07:45:19,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 07:45:19,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 07:45:19,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 07:45:19,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 07:45:19,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 07:45:19" (1/1) ... [2025-01-09 07:45:19,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c9d351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:19, skipping insertion in model container [2025-01-09 07:45:19,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 07:45:19" (1/1) ... [2025-01-09 07:45:20,027 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 07:45:20,228 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.6.prop1-back-serstep.c[1181,1194] [2025-01-09 07:45:20,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 07:45:20,900 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 07:45:20,906 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.6.prop1-back-serstep.c[1181,1194] [2025-01-09 07:45:21,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 07:45:21,329 INFO L204 MainTranslator]: Completed translation [2025-01-09 07:45:21,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21 WrapperNode [2025-01-09 07:45:21,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 07:45:21,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 07:45:21,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 07:45:21,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 07:45:21,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:21,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:22,680 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18058 [2025-01-09 07:45:22,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 07:45:22,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 07:45:22,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 07:45:22,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 07:45:22,690 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:22,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:23,139 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:23,332 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]. [2025-01-09 07:45:23,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:23,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:23,666 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:23,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:23,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:23,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:23,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:24,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 07:45:24,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 07:45:24,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 07:45:24,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 07:45:24,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (1/1) ... [2025-01-09 07:45:24,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 07:45:24,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 07:45:24,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 07:45:24,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 07:45:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 07:45:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 07:45:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 07:45:24,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 07:45:24,954 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 07:45:24,956 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 07:45:47,806 INFO L? ?]: Removed 10581 outVars from TransFormulas that were not future-live. [2025-01-09 07:45:47,807 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 07:45:47,897 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 07:45:47,901 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 07:45:47,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:45:47 BoogieIcfgContainer [2025-01-09 07:45:47,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 07:45:47,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 07:45:47,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 07:45:47,907 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 07:45:47,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 07:45:19" (1/3) ... [2025-01-09 07:45:47,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2867e5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 07:45:47, skipping insertion in model container [2025-01-09 07:45:47,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:45:21" (2/3) ... [2025-01-09 07:45:47,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2867e5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 07:45:47, skipping insertion in model container [2025-01-09 07:45:47,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:45:47" (3/3) ... [2025-01-09 07:45:47,910 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.peg_solitaire.6.prop1-back-serstep.c [2025-01-09 07:45:47,920 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 07:45:47,922 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.peg_solitaire.6.prop1-back-serstep.c that has 1 procedures, 5626 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 07:45:48,030 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 07:45:48,037 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;@4e26a48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 07:45:48,037 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 07:45:48,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 5626 states, 5624 states have (on average 1.4998221906116642) internal successors, (8435), 5625 states have internal predecessors, (8435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:45:48,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2025-01-09 07:45:48,067 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:45:48,068 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] [2025-01-09 07:45:48,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:45:48,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:45:48,072 INFO L85 PathProgramCache]: Analyzing trace with hash -61493505, now seen corresponding path program 1 times [2025-01-09 07:45:48,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:45:48,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109479466] [2025-01-09 07:45:48,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:45:48,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:45:48,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 431 statements into 1 equivalence classes. [2025-01-09 07:45:48,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 431 of 431 statements. [2025-01-09 07:45:48,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:45:48,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:45:50,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 07:45:50,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 07:45:50,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109479466] [2025-01-09 07:45:50,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109479466] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:45:50,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:45:50,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 07:45:50,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709982311] [2025-01-09 07:45:50,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:45:50,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 07:45:50,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 07:45:50,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 07:45:50,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 07:45:50,055 INFO L87 Difference]: Start difference. First operand has 5626 states, 5624 states have (on average 1.4998221906116642) internal successors, (8435), 5625 states have internal predecessors, (8435), 0 states have call successors, (0), 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 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:45:50,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:45:50,313 INFO L93 Difference]: Finished difference Result 11089 states and 16629 transitions. [2025-01-09 07:45:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 07:45:50,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 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 431 [2025-01-09 07:45:50,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:45:50,351 INFO L225 Difference]: With dead ends: 11089 [2025-01-09 07:45:50,351 INFO L226 Difference]: Without dead ends: 5625 [2025-01-09 07:45:50,363 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 [2025-01-09 07:45:50,366 INFO L435 NwaCegarLoop]: 8429 mSDtfsCounter, 0 mSDsluCounter, 16852 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25281 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 07:45:50,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25281 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 07:45:50,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5625 states. [2025-01-09 07:45:50,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5625 to 5625. [2025-01-09 07:45:50,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5625 states, 5624 states have (on average 1.4994665718349929) internal successors, (8433), 5624 states have internal predecessors, (8433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:45:50,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5625 states to 5625 states and 8433 transitions. [2025-01-09 07:45:50,559 INFO L78 Accepts]: Start accepts. Automaton has 5625 states and 8433 transitions. Word has length 431 [2025-01-09 07:45:50,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:45:50,560 INFO L471 AbstractCegarLoop]: Abstraction has 5625 states and 8433 transitions. [2025-01-09 07:45:50,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:45:50,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5625 states and 8433 transitions. [2025-01-09 07:45:50,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2025-01-09 07:45:50,569 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:45:50,570 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] [2025-01-09 07:45:50,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 07:45:50,571 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:45:50,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:45:50,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1904600733, now seen corresponding path program 1 times [2025-01-09 07:45:50,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:45:50,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334662862] [2025-01-09 07:45:50,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:45:50,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:45:50,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 432 statements into 1 equivalence classes. [2025-01-09 07:45:50,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 432 of 432 statements. [2025-01-09 07:45:50,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:45:50,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:45:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 07:45:51,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 07:45:51,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334662862] [2025-01-09 07:45:51,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334662862] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:45:51,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:45:51,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 07:45:51,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324674683] [2025-01-09 07:45:51,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:45:51,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 07:45:51,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 07:45:51,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 07:45:51,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 07:45:51,671 INFO L87 Difference]: Start difference. First operand 5625 states and 8433 transitions. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:45:51,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:45:51,927 INFO L93 Difference]: Finished difference Result 11090 states and 16627 transitions. [2025-01-09 07:45:51,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 07:45:51,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 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 432 [2025-01-09 07:45:51,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:45:51,945 INFO L225 Difference]: With dead ends: 11090 [2025-01-09 07:45:51,945 INFO L226 Difference]: Without dead ends: 5627 [2025-01-09 07:45:51,953 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 [2025-01-09 07:45:51,954 INFO L435 NwaCegarLoop]: 8429 mSDtfsCounter, 0 mSDsluCounter, 16848 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25277 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 07:45:51,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25277 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 07:45:51,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5627 states. [2025-01-09 07:45:52,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5627 to 5627. [2025-01-09 07:45:52,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5627 states, 5626 states have (on average 1.4992890152861713) internal successors, (8435), 5626 states have internal predecessors, (8435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:45:52,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5627 states to 5627 states and 8435 transitions. [2025-01-09 07:45:52,055 INFO L78 Accepts]: Start accepts. Automaton has 5627 states and 8435 transitions. Word has length 432 [2025-01-09 07:45:52,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:45:52,056 INFO L471 AbstractCegarLoop]: Abstraction has 5627 states and 8435 transitions. [2025-01-09 07:45:52,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:45:52,057 INFO L276 IsEmpty]: Start isEmpty. Operand 5627 states and 8435 transitions. [2025-01-09 07:45:52,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2025-01-09 07:45:52,063 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:45:52,063 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] [2025-01-09 07:45:52,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 07:45:52,063 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:45:52,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:45:52,067 INFO L85 PathProgramCache]: Analyzing trace with hash -11043752, now seen corresponding path program 1 times [2025-01-09 07:45:52,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:45:52,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560964231] [2025-01-09 07:45:52,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:45:52,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:45:52,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 433 statements into 1 equivalence classes. [2025-01-09 07:45:52,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 433 of 433 statements. [2025-01-09 07:45:52,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:45:52,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:45:52,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 07:45:52,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 07:45:52,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560964231] [2025-01-09 07:45:52,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560964231] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:45:52,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:45:52,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 07:45:52,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706693064] [2025-01-09 07:45:52,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:45:52,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 07:45:52,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 07:45:52,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 07:45:52,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 07:45:52,859 INFO L87 Difference]: Start difference. First operand 5627 states and 8435 transitions. Second operand has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:45:53,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:45:53,102 INFO L93 Difference]: Finished difference Result 16543 states and 24802 transitions. [2025-01-09 07:45:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 07:45:53,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 0 states have call successors, (0), 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 433 [2025-01-09 07:45:53,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:45:53,139 INFO L225 Difference]: With dead ends: 16543 [2025-01-09 07:45:53,139 INFO L226 Difference]: Without dead ends: 11078 [2025-01-09 07:45:53,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 07:45:53,150 INFO L435 NwaCegarLoop]: 8427 mSDtfsCounter, 7990 mSDsluCounter, 25034 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7990 SdHoareTripleChecker+Valid, 33461 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 07:45:53,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7990 Valid, 33461 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 07:45:53,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11078 states. [2025-01-09 07:45:53,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11078 to 6313. [2025-01-09 07:45:53,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6313 states, 6312 states have (on average 1.4992078580481623) internal successors, (9463), 6312 states have internal predecessors, (9463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:45:53,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6313 states to 6313 states and 9463 transitions. [2025-01-09 07:45:53,299 INFO L78 Accepts]: Start accepts. Automaton has 6313 states and 9463 transitions. Word has length 433 [2025-01-09 07:45:53,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:45:53,300 INFO L471 AbstractCegarLoop]: Abstraction has 6313 states and 9463 transitions. [2025-01-09 07:45:53,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:45:53,302 INFO L276 IsEmpty]: Start isEmpty. Operand 6313 states and 9463 transitions. [2025-01-09 07:45:53,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3165 [2025-01-09 07:45:53,447 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:45:53,449 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 07:45:53,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 07:45:53,449 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:45:53,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:45:53,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1018294042, now seen corresponding path program 1 times [2025-01-09 07:45:53,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:45:53,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993330064] [2025-01-09 07:45:53,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:45:53,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:45:53,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3164 statements into 1 equivalence classes. [2025-01-09 07:45:57,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3164 of 3164 statements. [2025-01-09 07:45:57,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:45:57,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:46:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2025-01-09 07:46:04,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 07:46:04,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993330064] [2025-01-09 07:46:04,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993330064] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:46:04,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:46:04,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 07:46:04,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673118740] [2025-01-09 07:46:04,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:46:04,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 07:46:04,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 07:46:04,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 07:46:04,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 07:46:04,322 INFO L87 Difference]: Start difference. First operand 6313 states and 9463 transitions. Second operand has 5 states, 5 states have (on average 564.6) internal successors, (2823), 5 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:46:04,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:46:04,682 INFO L93 Difference]: Finished difference Result 11782 states and 17661 transitions. [2025-01-09 07:46:04,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 07:46:04,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 564.6) internal successors, (2823), 5 states have internal predecessors, (2823), 0 states have call successors, (0), 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 3164 [2025-01-09 07:46:04,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:46:04,728 INFO L225 Difference]: With dead ends: 11782 [2025-01-09 07:46:04,734 INFO L226 Difference]: Without dead ends: 6317 [2025-01-09 07:46:04,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 07:46:04,745 INFO L435 NwaCegarLoop]: 8429 mSDtfsCounter, 0 mSDsluCounter, 25271 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33700 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 07:46:04,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33700 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 07:46:04,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6317 states. [2025-01-09 07:46:04,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6317 to 6313. [2025-01-09 07:46:04,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6313 states, 6312 states have (on average 1.4992078580481623) internal successors, (9463), 6312 states have internal predecessors, (9463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:46:04,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6313 states to 6313 states and 9463 transitions. [2025-01-09 07:46:04,909 INFO L78 Accepts]: Start accepts. Automaton has 6313 states and 9463 transitions. Word has length 3164 [2025-01-09 07:46:04,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:46:04,913 INFO L471 AbstractCegarLoop]: Abstraction has 6313 states and 9463 transitions. [2025-01-09 07:46:04,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 564.6) internal successors, (2823), 5 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:46:04,914 INFO L276 IsEmpty]: Start isEmpty. Operand 6313 states and 9463 transitions. [2025-01-09 07:46:04,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3166 [2025-01-09 07:46:04,958 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:46:04,959 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 07:46:04,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 07:46:04,960 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:46:04,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:46:04,962 INFO L85 PathProgramCache]: Analyzing trace with hash -593454660, now seen corresponding path program 1 times [2025-01-09 07:46:04,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:46:04,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898993381] [2025-01-09 07:46:04,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:46:04,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:46:05,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3165 statements into 1 equivalence classes. [2025-01-09 07:46:07,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3165 of 3165 statements. [2025-01-09 07:46:07,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:46:07,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:46:14,182 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2025-01-09 07:46:14,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 07:46:14,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898993381] [2025-01-09 07:46:14,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898993381] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:46:14,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:46:14,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 07:46:14,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469039109] [2025-01-09 07:46:14,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:46:14,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 07:46:14,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 07:46:14,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 07:46:14,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 07:46:14,191 INFO L87 Difference]: Start difference. First operand 6313 states and 9463 transitions. Second operand has 4 states, 4 states have (on average 706.5) internal successors, (2826), 4 states have internal predecessors, (2826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:46:14,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:46:14,372 INFO L93 Difference]: Finished difference Result 11786 states and 17667 transitions. [2025-01-09 07:46:14,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 07:46:14,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 706.5) internal successors, (2826), 4 states have internal predecessors, (2826), 0 states have call successors, (0), 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 3165 [2025-01-09 07:46:14,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:46:14,402 INFO L225 Difference]: With dead ends: 11786 [2025-01-09 07:46:14,402 INFO L226 Difference]: Without dead ends: 6317 [2025-01-09 07:46:14,416 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 [2025-01-09 07:46:14,417 INFO L435 NwaCegarLoop]: 8429 mSDtfsCounter, 0 mSDsluCounter, 16848 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25277 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 07:46:14,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25277 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 07:46:14,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6317 states. [2025-01-09 07:46:14,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6317 to 6315. [2025-01-09 07:46:14,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6315 states, 6314 states have (on average 1.4990497307570478) internal successors, (9465), 6314 states have internal predecessors, (9465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:46:14,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6315 states to 6315 states and 9465 transitions. [2025-01-09 07:46:14,631 INFO L78 Accepts]: Start accepts. Automaton has 6315 states and 9465 transitions. Word has length 3165 [2025-01-09 07:46:14,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:46:14,641 INFO L471 AbstractCegarLoop]: Abstraction has 6315 states and 9465 transitions. [2025-01-09 07:46:14,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 706.5) internal successors, (2826), 4 states have internal predecessors, (2826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:46:14,643 INFO L276 IsEmpty]: Start isEmpty. Operand 6315 states and 9465 transitions. [2025-01-09 07:46:14,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3167 [2025-01-09 07:46:14,760 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:46:14,762 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 07:46:14,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 07:46:14,762 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:46:14,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:46:14,765 INFO L85 PathProgramCache]: Analyzing trace with hash -103029313, now seen corresponding path program 1 times [2025-01-09 07:46:14,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:46:14,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723863793] [2025-01-09 07:46:14,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:46:14,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:46:15,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3166 statements into 1 equivalence classes. [2025-01-09 07:46:19,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3166 of 3166 statements. [2025-01-09 07:46:19,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:46:19,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:46:25,276 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2025-01-09 07:46:25,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 07:46:25,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723863793] [2025-01-09 07:46:25,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723863793] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:46:25,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:46:25,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 07:46:25,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878484556] [2025-01-09 07:46:25,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:46:25,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 07:46:25,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 07:46:25,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 07:46:25,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 07:46:25,281 INFO L87 Difference]: Start difference. First operand 6315 states and 9465 transitions. Second operand has 4 states, 4 states have (on average 707.25) internal successors, (2829), 4 states have internal predecessors, (2829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:46:25,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:46:25,362 INFO L93 Difference]: Finished difference Result 11794 states and 17677 transitions. [2025-01-09 07:46:25,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 07:46:25,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 707.25) internal successors, (2829), 4 states have internal predecessors, (2829), 0 states have call successors, (0), 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 3166 [2025-01-09 07:46:25,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:46:25,375 INFO L225 Difference]: With dead ends: 11794 [2025-01-09 07:46:25,375 INFO L226 Difference]: Without dead ends: 6319 [2025-01-09 07:46:25,380 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 [2025-01-09 07:46:25,380 INFO L435 NwaCegarLoop]: 8429 mSDtfsCounter, 0 mSDsluCounter, 16848 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25277 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 07:46:25,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25277 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 07:46:25,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6319 states. [2025-01-09 07:46:25,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6319 to 6317. [2025-01-09 07:46:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6317 states, 6316 states have (on average 1.4988917036098797) internal successors, (9467), 6316 states have internal predecessors, (9467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:46:25,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6317 states to 6317 states and 9467 transitions. [2025-01-09 07:46:25,445 INFO L78 Accepts]: Start accepts. Automaton has 6317 states and 9467 transitions. Word has length 3166 [2025-01-09 07:46:25,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:46:25,449 INFO L471 AbstractCegarLoop]: Abstraction has 6317 states and 9467 transitions. [2025-01-09 07:46:25,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 707.25) internal successors, (2829), 4 states have internal predecessors, (2829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:46:25,449 INFO L276 IsEmpty]: Start isEmpty. Operand 6317 states and 9467 transitions. [2025-01-09 07:46:25,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3168 [2025-01-09 07:46:25,679 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:46:25,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 07:46:25,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 07:46:25,684 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:46:25,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:46:25,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1830388381, now seen corresponding path program 1 times [2025-01-09 07:46:25,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:46:25,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362011670] [2025-01-09 07:46:25,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:46:25,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:46:26,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3167 statements into 1 equivalence classes. [2025-01-09 07:46:29,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3167 of 3167 statements. [2025-01-09 07:46:29,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:46:29,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat