./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash e35b58fc5b5d3bd96f979b50ab552950d520b0e41c0cf9ea2d0c476079709cda --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 15:15:41,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 15:15:41,934 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 15:15:41,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 15:15:41,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 15:15:41,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 15:15:41,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 15:15:41,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 15:15:41,982 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 15:15:41,982 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 15:15:41,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 15:15:41,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 15:15:41,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 15:15:41,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 15:15:41,986 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 15:15:41,986 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 15:15:41,987 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 15:15:41,987 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 15:15:41,987 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 15:15:41,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 15:15:41,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 15:15:41,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 15:15:41,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 15:15:41,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 15:15:41,993 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 15:15:41,993 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 15:15:41,994 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 15:15:41,994 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 15:15:41,994 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 15:15:41,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 15:15:41,995 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 15:15:41,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 15:15:41,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:15:41,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 15:15:41,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 15:15:41,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 15:15:41,997 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 15:15:41,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 15:15:41,997 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 15:15:41,997 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 15:15:41,998 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 15:15:41,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 15:15:41,998 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e35b58fc5b5d3bd96f979b50ab552950d520b0e41c0cf9ea2d0c476079709cda [2024-11-16 15:15:42,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 15:15:42,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 15:15:42,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 15:15:42,295 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 15:15:42,297 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 15:15:42,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i [2024-11-16 15:15:43,743 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 15:15:44,004 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 15:15:44,007 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i [2024-11-16 15:15:44,020 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b849d723/5074acc94e1446f7a09c9f41c587f168/FLAG07cd6558d [2024-11-16 15:15:44,037 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b849d723/5074acc94e1446f7a09c9f41c587f168 [2024-11-16 15:15:44,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 15:15:44,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 15:15:44,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 15:15:44,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 15:15:44,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 15:15:44,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f2ebf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44, skipping insertion in model container [2024-11-16 15:15:44,052 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,086 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 15:15:44,289 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i[919,932] [2024-11-16 15:15:44,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:15:44,410 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 15:15:44,420 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i[919,932] [2024-11-16 15:15:44,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:15:44,480 INFO L204 MainTranslator]: Completed translation [2024-11-16 15:15:44,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44 WrapperNode [2024-11-16 15:15:44,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 15:15:44,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 15:15:44,483 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 15:15:44,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 15:15:44,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,566 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 265 [2024-11-16 15:15:44,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 15:15:44,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 15:15:44,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 15:15:44,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 15:15:44,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,611 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]. [2024-11-16 15:15:44,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,634 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,647 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 15:15:44,654 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 15:15:44,655 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 15:15:44,655 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 15:15:44,656 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (1/1) ... [2024-11-16 15:15:44,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:15:44,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 15:15:44,687 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) [2024-11-16 15:15:44,694 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 [2024-11-16 15:15:44,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 15:15:44,740 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 15:15:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 15:15:44,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 15:15:44,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 15:15:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 15:15:44,844 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 15:15:44,846 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 15:15:45,335 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-16 15:15:45,336 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 15:15:45,358 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 15:15:45,358 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 15:15:45,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:15:45 BoogieIcfgContainer [2024-11-16 15:15:45,359 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 15:15:45,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 15:15:45,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 15:15:45,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 15:15:45,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:15:44" (1/3) ... [2024-11-16 15:15:45,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2ca371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:15:45, skipping insertion in model container [2024-11-16 15:15:45,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:15:44" (2/3) ... [2024-11-16 15:15:45,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2ca371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:15:45, skipping insertion in model container [2024-11-16 15:15:45,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:15:45" (3/3) ... [2024-11-16 15:15:45,370 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i [2024-11-16 15:15:45,387 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 15:15:45,388 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 15:15:45,533 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 15:15:45,540 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;@5b4f2d01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 15:15:45,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 15:15:45,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 73 states have (on average 1.36986301369863) internal successors, (100), 74 states have internal predecessors, (100), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 15:15:45,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-16 15:15:45,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:15:45,570 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:15:45,571 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:15:45,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:15:45,575 INFO L85 PathProgramCache]: Analyzing trace with hash 121206710, now seen corresponding path program 1 times [2024-11-16 15:15:45,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:15:45,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135534680] [2024-11-16 15:15:45,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:15:45,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:15:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:45,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:15:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:45,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:15:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:45,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:15:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:45,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:15:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:45,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:15:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:45,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:15:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:45,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:15:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:45,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:15:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:15:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:15:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:15:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:15:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:15:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:15:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:15:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:15:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:15:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 15:15:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 15:15:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 15:15:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:15:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 15:15:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 15:15:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 15:15:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 15:15:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 15:15:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 15:15:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 15:15:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 15:15:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 15:15:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-16 15:15:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 15:15:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-16 15:15:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-16 15:15:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-16 15:15:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-16 15:15:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-16 15:15:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-16 15:15:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 15:15:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 15:15:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-16 15:15:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-16 15:15:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-16 15:15:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-16 15:15:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-16 15:15:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-11-16 15:15:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-16 15:15:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-11-16 15:15:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-16 15:15:46,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:15:46,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135534680] [2024-11-16 15:15:46,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135534680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:15:46,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:15:46,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 15:15:46,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389463697] [2024-11-16 15:15:46,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:15:46,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 15:15:46,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:15:46,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 15:15:46,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 15:15:46,279 INFO L87 Difference]: Start difference. First operand has 124 states, 73 states have (on average 1.36986301369863) internal successors, (100), 74 states have internal predecessors, (100), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-16 15:15:46,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:15:46,337 INFO L93 Difference]: Finished difference Result 240 states and 433 transitions. [2024-11-16 15:15:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 15:15:46,341 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 293 [2024-11-16 15:15:46,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:15:46,351 INFO L225 Difference]: With dead ends: 240 [2024-11-16 15:15:46,351 INFO L226 Difference]: Without dead ends: 119 [2024-11-16 15:15:46,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 15:15:46,363 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:15:46,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:15:46,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-16 15:15:46,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-16 15:15:46,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 69 states have (on average 1.3333333333333333) internal successors, (92), 69 states have internal predecessors, (92), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 15:15:46,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 188 transitions. [2024-11-16 15:15:46,420 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 188 transitions. Word has length 293 [2024-11-16 15:15:46,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:15:46,421 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 188 transitions. [2024-11-16 15:15:46,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-16 15:15:46,421 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 188 transitions. [2024-11-16 15:15:46,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-16 15:15:46,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:15:46,428 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:15:46,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 15:15:46,429 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:15:46,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:15:46,429 INFO L85 PathProgramCache]: Analyzing trace with hash -2133736266, now seen corresponding path program 1 times [2024-11-16 15:15:46,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:15:46,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421462221] [2024-11-16 15:15:46,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:15:46,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:15:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:15:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:15:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:15:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:15:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:15:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:15:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:15:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:15:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:15:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:15:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:15:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:15:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:15:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:15:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:15:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:15:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:15:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 15:15:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 15:15:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 15:15:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:15:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 15:15:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 15:15:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 15:15:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 15:15:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 15:15:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 15:15:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 15:15:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 15:15:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 15:15:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-16 15:15:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 15:15:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-16 15:15:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-16 15:15:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-16 15:15:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-16 15:15:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-16 15:15:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-16 15:15:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 15:15:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 15:15:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-16 15:15:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-16 15:15:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-16 15:15:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-16 15:15:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-16 15:15:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-11-16 15:15:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-16 15:15:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-11-16 15:15:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:46,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-16 15:15:46,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:15:46,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421462221] [2024-11-16 15:15:46,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421462221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:15:46,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:15:46,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 15:15:46,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484978282] [2024-11-16 15:15:46,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:15:46,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 15:15:46,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:15:46,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 15:15:46,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:15:46,920 INFO L87 Difference]: Start difference. First operand 119 states and 188 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-16 15:15:47,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:15:47,016 INFO L93 Difference]: Finished difference Result 350 states and 556 transitions. [2024-11-16 15:15:47,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 15:15:47,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 293 [2024-11-16 15:15:47,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:15:47,026 INFO L225 Difference]: With dead ends: 350 [2024-11-16 15:15:47,027 INFO L226 Difference]: Without dead ends: 234 [2024-11-16 15:15:47,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:15:47,029 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 176 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:15:47,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 533 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:15:47,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-16 15:15:47,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 123. [2024-11-16 15:15:47,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 73 states have (on average 1.3287671232876712) internal successors, (97), 73 states have internal predecessors, (97), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 15:15:47,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 193 transitions. [2024-11-16 15:15:47,068 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 193 transitions. Word has length 293 [2024-11-16 15:15:47,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:15:47,072 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 193 transitions. [2024-11-16 15:15:47,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-16 15:15:47,073 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 193 transitions. [2024-11-16 15:15:47,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-16 15:15:47,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:15:47,079 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:15:47,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 15:15:47,080 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:15:47,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:15:47,081 INFO L85 PathProgramCache]: Analyzing trace with hash 353776567, now seen corresponding path program 1 times [2024-11-16 15:15:47,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:15:47,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006628463] [2024-11-16 15:15:47,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:15:47,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:15:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:15:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:15:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:15:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:15:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:15:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:15:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:15:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:15:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:15:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:15:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:15:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:15:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:15:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:15:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:15:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:15:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:15:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 15:15:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 15:15:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 15:15:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:15:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 15:15:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 15:15:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 15:15:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 15:15:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 15:15:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 15:15:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 15:15:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 15:15:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 15:15:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-16 15:15:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 15:15:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-16 15:15:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-16 15:15:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-16 15:15:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-16 15:15:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-16 15:15:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-16 15:15:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 15:15:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 15:15:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-16 15:15:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-16 15:15:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-16 15:15:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-16 15:15:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-16 15:15:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-11-16 15:15:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-16 15:15:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-11-16 15:15:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:15:47,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-16 15:15:47,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:15:47,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006628463] [2024-11-16 15:15:47,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006628463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:15:47,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:15:47,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 15:15:47,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660512949] [2024-11-16 15:15:47,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:15:47,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 15:15:47,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:15:47,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 15:15:47,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 15:15:47,896 INFO L87 Difference]: Start difference. First operand 123 states and 193 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-16 15:15:48,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:15:48,192 INFO L93 Difference]: Finished difference Result 357 states and 568 transitions. [2024-11-16 15:15:48,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 15:15:48,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 293 [2024-11-16 15:15:48,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:15:48,200 INFO L225 Difference]: With dead ends: 357 [2024-11-16 15:15:48,200 INFO L226 Difference]: Without dead ends: 237 [2024-11-16 15:15:48,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 15:15:48,202 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 95 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 15:15:48,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 437 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 15:15:48,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-16 15:15:48,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 215. [2024-11-16 15:15:48,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 116 states have (on average 1.2844827586206897) internal successors, (149), 116 states have internal predecessors, (149), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-16 15:15:48,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 341 transitions. [2024-11-16 15:15:48,237 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 341 transitions. Word has length 293 [2024-11-16 15:15:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:15:48,238 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 341 transitions. [2024-11-16 15:15:48,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-16 15:15:48,238 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 341 transitions. [2024-11-16 15:15:48,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-16 15:15:48,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:15:48,242 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:15:48,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 15:15:48,242 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:15:48,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:15:48,243 INFO L85 PathProgramCache]: Analyzing trace with hash -156757610, now seen corresponding path program 1 times [2024-11-16 15:15:48,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:15:48,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056096897] [2024-11-16 15:15:48,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:15:48,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:15:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat