./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.2.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.2.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 f88935987963f04c0c1a0b907818cf34062bda3c176c194b6b68279727a9fc57 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 04:49:47,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 04:49:47,899 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 04:49:47,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 04:49:47,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 04:49:47,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 04:49:47,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 04:49:47,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 04:49:47,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 04:49:47,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 04:49:47,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 04:49:47,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 04:49:47,943 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 04:49:47,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 04:49:47,943 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 04:49:47,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 04:49:47,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 04:49:47,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 04:49:47,948 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 04:49:47,949 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 04:49:47,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 04:49:47,949 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 04:49:47,950 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 04:49:47,950 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 04:49:47,950 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 04:49:47,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 04:49:47,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 04:49:47,951 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 04:49:47,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 04:49:47,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:49:47,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 04:49:47,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 04:49:47,952 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 04:49:47,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 04:49:47,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 04:49:47,953 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 04:49:47,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 04:49:47,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 04:49:47,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 04:49:47,955 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f88935987963f04c0c1a0b907818cf34062bda3c176c194b6b68279727a9fc57 [2024-10-24 04:49:48,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 04:49:48,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 04:49:48,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 04:49:48,271 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 04:49:48,271 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 04:49:48,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.2.prop1-back-serstep.c [2024-10-24 04:49:49,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 04:49:50,297 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 04:49:50,298 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.2.prop1-back-serstep.c [2024-10-24 04:49:50,348 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69f9ee6b0/9cfd7bb5589842e1babed28ebd96884b/FLAG61720da43 [2024-10-24 04:49:50,368 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69f9ee6b0/9cfd7bb5589842e1babed28ebd96884b [2024-10-24 04:49:50,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 04:49:50,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 04:49:50,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 04:49:50,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 04:49:50,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 04:49:50,385 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:49:50" (1/1) ... [2024-10-24 04:49:50,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ac3a2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:50, skipping insertion in model container [2024-10-24 04:49:50,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:49:50" (1/1) ... [2024-10-24 04:49:50,552 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 04:49:50,893 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.2.prop1-back-serstep.c[1175,1188] [2024-10-24 04:49:52,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:49:52,044 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 04:49:52,057 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.2.prop1-back-serstep.c[1175,1188] [2024-10-24 04:49:52,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:49:52,738 INFO L204 MainTranslator]: Completed translation [2024-10-24 04:49:52,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52 WrapperNode [2024-10-24 04:49:52,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 04:49:52,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 04:49:52,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 04:49:52,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 04:49:52,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (1/1) ... [2024-10-24 04:49:53,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (1/1) ... [2024-10-24 04:49:55,022 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20002 [2024-10-24 04:49:55,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 04:49:55,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 04:49:55,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 04:49:55,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 04:49:55,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (1/1) ... [2024-10-24 04:49:55,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (1/1) ... [2024-10-24 04:49:55,644 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (1/1) ... [2024-10-24 04:49:55,984 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 04:49:55,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (1/1) ... [2024-10-24 04:49:55,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (1/1) ... [2024-10-24 04:49:56,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (1/1) ... [2024-10-24 04:49:56,683 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (1/1) ... [2024-10-24 04:49:56,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (1/1) ... [2024-10-24 04:49:56,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (1/1) ... [2024-10-24 04:49:57,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 04:49:57,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 04:49:57,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 04:49:57,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 04:49:57,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (1/1) ... [2024-10-24 04:49:57,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:49:57,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 04:49:57,213 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) [2024-10-24 04:49:57,215 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 [2024-10-24 04:49:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 04:49:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 04:49:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 04:49:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 04:49:58,769 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 04:49:58,771 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 04:50:30,515 INFO L? ?]: Removed 13919 outVars from TransFormulas that were not future-live. [2024-10-24 04:50:30,516 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 04:50:30,909 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 04:50:30,910 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 04:50:30,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:50:30 BoogieIcfgContainer [2024-10-24 04:50:30,910 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 04:50:30,912 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 04:50:30,912 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 04:50:30,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 04:50:30,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:49:50" (1/3) ... [2024-10-24 04:50:30,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10102e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:50:30, skipping insertion in model container [2024-10-24 04:50:30,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:49:52" (2/3) ... [2024-10-24 04:50:30,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10102e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:50:30, skipping insertion in model container [2024-10-24 04:50:30,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:50:30" (3/3) ... [2024-10-24 04:50:30,920 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sokoban.2.prop1-back-serstep.c [2024-10-24 04:50:30,938 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 04:50:30,938 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 04:50:31,066 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 04:50:31,073 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;@7076f1ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 04:50:31,073 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 04:50:31,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 4619 states, 4617 states have (on average 1.500108295429933) internal successors, (6926), 4618 states have internal predecessors, (6926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-10-24 04:50:31,133 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:50:31,134 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:50:31,135 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:50:31,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:50:31,142 INFO L85 PathProgramCache]: Analyzing trace with hash -471115250, now seen corresponding path program 1 times [2024-10-24 04:50:31,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:50:31,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552568786] [2024-10-24 04:50:31,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:50:31,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:50:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:50:33,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:50:33,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:50:33,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552568786] [2024-10-24 04:50:33,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552568786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:50:33,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:50:33,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:50:33,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821210762] [2024-10-24 04:50:33,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:50:33,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:50:33,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:50:33,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:50:33,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:50:33,752 INFO L87 Difference]: Start difference. First operand has 4619 states, 4617 states have (on average 1.500108295429933) internal successors, (6926), 4618 states have internal predecessors, (6926), 0 states have call successors, (0), 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 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:34,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:50:34,057 INFO L93 Difference]: Finished difference Result 8974 states and 13458 transitions. [2024-10-24 04:50:34,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:50:34,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 412 [2024-10-24 04:50:34,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:50:34,104 INFO L225 Difference]: With dead ends: 8974 [2024-10-24 04:50:34,104 INFO L226 Difference]: Without dead ends: 4620 [2024-10-24 04:50:34,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:50:34,123 INFO L432 NwaCegarLoop]: 6921 mSDtfsCounter, 0 mSDsluCounter, 13837 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20758 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:50:34,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20758 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:50:34,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4620 states. [2024-10-24 04:50:34,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4620 to 4620. [2024-10-24 04:50:34,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4620 states, 4619 states have (on average 1.4994587573067764) internal successors, (6926), 4619 states have internal predecessors, (6926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:34,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4620 states to 4620 states and 6926 transitions. [2024-10-24 04:50:34,304 INFO L78 Accepts]: Start accepts. Automaton has 4620 states and 6926 transitions. Word has length 412 [2024-10-24 04:50:34,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:50:34,306 INFO L471 AbstractCegarLoop]: Abstraction has 4620 states and 6926 transitions. [2024-10-24 04:50:34,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:34,307 INFO L276 IsEmpty]: Start isEmpty. Operand 4620 states and 6926 transitions. [2024-10-24 04:50:34,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-10-24 04:50:34,316 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:50:34,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:50:34,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 04:50:34,317 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:50:34,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:50:34,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1717973057, now seen corresponding path program 1 times [2024-10-24 04:50:34,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:50:34,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417957850] [2024-10-24 04:50:34,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:50:34,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:50:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:50:35,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:50:35,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:50:35,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417957850] [2024-10-24 04:50:35,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417957850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:50:35,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:50:35,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:50:35,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891932826] [2024-10-24 04:50:35,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:50:35,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:50:35,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:50:35,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:50:35,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:50:35,352 INFO L87 Difference]: Start difference. First operand 4620 states and 6926 transitions. Second operand has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:35,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:50:35,542 INFO L93 Difference]: Finished difference Result 8977 states and 13458 transitions. [2024-10-24 04:50:35,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:50:35,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 413 [2024-10-24 04:50:35,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:50:35,561 INFO L225 Difference]: With dead ends: 8977 [2024-10-24 04:50:35,562 INFO L226 Difference]: Without dead ends: 4622 [2024-10-24 04:50:35,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:50:35,570 INFO L432 NwaCegarLoop]: 6921 mSDtfsCounter, 0 mSDsluCounter, 13834 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20755 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:50:35,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20755 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:50:35,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2024-10-24 04:50:35,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 4622. [2024-10-24 04:50:35,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4622 states, 4621 states have (on average 1.4992425881843756) internal successors, (6928), 4621 states have internal predecessors, (6928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:35,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4622 states to 4622 states and 6928 transitions. [2024-10-24 04:50:35,661 INFO L78 Accepts]: Start accepts. Automaton has 4622 states and 6928 transitions. Word has length 413 [2024-10-24 04:50:35,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:50:35,663 INFO L471 AbstractCegarLoop]: Abstraction has 4622 states and 6928 transitions. [2024-10-24 04:50:35,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:35,664 INFO L276 IsEmpty]: Start isEmpty. Operand 4622 states and 6928 transitions. [2024-10-24 04:50:35,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-10-24 04:50:35,670 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:50:35,671 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:50:35,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 04:50:35,671 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:50:35,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:50:35,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1479446791, now seen corresponding path program 1 times [2024-10-24 04:50:35,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:50:35,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965375655] [2024-10-24 04:50:35,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:50:35,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:50:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:50:37,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:50:37,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:50:37,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965375655] [2024-10-24 04:50:37,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965375655] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:50:37,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:50:37,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:50:37,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163535071] [2024-10-24 04:50:37,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:50:37,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:50:37,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:50:37,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:50:37,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:50:37,372 INFO L87 Difference]: Start difference. First operand 4622 states and 6928 transitions. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:37,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:50:37,565 INFO L93 Difference]: Finished difference Result 8981 states and 13462 transitions. [2024-10-24 04:50:37,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:50:37,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 414 [2024-10-24 04:50:37,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:50:37,582 INFO L225 Difference]: With dead ends: 8981 [2024-10-24 04:50:37,582 INFO L226 Difference]: Without dead ends: 4624 [2024-10-24 04:50:37,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:50:37,592 INFO L432 NwaCegarLoop]: 6921 mSDtfsCounter, 0 mSDsluCounter, 13834 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20755 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:50:37,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20755 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:50:37,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4624 states. [2024-10-24 04:50:37,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4624 to 4624. [2024-10-24 04:50:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4624 states, 4623 states have (on average 1.499026606099935) internal successors, (6930), 4623 states have internal predecessors, (6930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4624 states to 4624 states and 6930 transitions. [2024-10-24 04:50:37,819 INFO L78 Accepts]: Start accepts. Automaton has 4624 states and 6930 transitions. Word has length 414 [2024-10-24 04:50:37,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:50:37,820 INFO L471 AbstractCegarLoop]: Abstraction has 4624 states and 6930 transitions. [2024-10-24 04:50:37,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:37,820 INFO L276 IsEmpty]: Start isEmpty. Operand 4624 states and 6930 transitions. [2024-10-24 04:50:37,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-10-24 04:50:37,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:50:37,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:50:37,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 04:50:37,829 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:50:37,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:50:37,830 INFO L85 PathProgramCache]: Analyzing trace with hash -472900282, now seen corresponding path program 1 times [2024-10-24 04:50:37,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:50:37,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284639843] [2024-10-24 04:50:37,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:50:37,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:50:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:50:39,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:50:39,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:50:39,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284639843] [2024-10-24 04:50:39,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284639843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:50:39,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:50:39,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:50:39,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217134214] [2024-10-24 04:50:39,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:50:39,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 04:50:39,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:50:39,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 04:50:39,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:50:39,253 INFO L87 Difference]: Start difference. First operand 4624 states and 6930 transitions. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:39,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:50:39,581 INFO L93 Difference]: Finished difference Result 13328 states and 19977 transitions. [2024-10-24 04:50:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 04:50:39,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 415 [2024-10-24 04:50:39,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:50:39,613 INFO L225 Difference]: With dead ends: 13328 [2024-10-24 04:50:39,613 INFO L226 Difference]: Without dead ends: 8969 [2024-10-24 04:50:39,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:50:39,625 INFO L432 NwaCegarLoop]: 6919 mSDtfsCounter, 6501 mSDsluCounter, 20357 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6501 SdHoareTripleChecker+Valid, 27276 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:50:39,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6501 Valid, 27276 Invalid, 23 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:50:39,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8969 states. [2024-10-24 04:50:39,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8969 to 5168. [2024-10-24 04:50:39,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 5167 states have (on average 1.4991290884459068) internal successors, (7746), 5167 states have internal predecessors, (7746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:39,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 7746 transitions. [2024-10-24 04:50:39,862 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 7746 transitions. Word has length 415 [2024-10-24 04:50:39,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:50:39,862 INFO L471 AbstractCegarLoop]: Abstraction has 5168 states and 7746 transitions. [2024-10-24 04:50:39,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:50:39,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 7746 transitions. [2024-10-24 04:50:40,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2593 [2024-10-24 04:50:40,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:50:40,027 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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] [2024-10-24 04:50:40,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 04:50:40,027 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:50:40,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:50:40,029 INFO L85 PathProgramCache]: Analyzing trace with hash 2085946222, now seen corresponding path program 1 times [2024-10-24 04:50:40,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:50:40,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766172148] [2024-10-24 04:50:40,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:50:40,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:50:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat