./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3471f06dc12ad44598fd2961f3d0cb274ed30b5886ce0a764ca9d78e786b896 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 21:41:55,882 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 21:41:55,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 21:41:55,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 21:41:55,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 21:41:55,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 21:41:55,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 21:41:55,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 21:41:55,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 21:41:55,974 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 21:41:55,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 21:41:55,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 21:41:55,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 21:41:55,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 21:41:55,975 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 21:41:55,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 21:41:55,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 21:41:55,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 21:41:55,976 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 21:41:55,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 21:41:55,976 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 21:41:55,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 21:41:55,976 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 21:41:55,976 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 21:41:55,976 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 21:41:55,976 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 21:41:55,976 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3471f06dc12ad44598fd2961f3d0cb274ed30b5886ce0a764ca9d78e786b896 [2025-02-05 21:41:56,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 21:41:56,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 21:41:56,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 21:41:56,234 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 21:41:56,234 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 21:41:56,235 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2025-02-05 21:41:57,443 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ccbe2d85a/d232d91121ac46cb8fe03b4b625d86ac/FLAG323fa0945 [2025-02-05 21:41:57,725 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 21:41:57,726 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2025-02-05 21:41:57,739 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ccbe2d85a/d232d91121ac46cb8fe03b4b625d86ac/FLAG323fa0945 [2025-02-05 21:41:57,759 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ccbe2d85a/d232d91121ac46cb8fe03b4b625d86ac [2025-02-05 21:41:57,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 21:41:57,762 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 21:41:57,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 21:41:57,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 21:41:57,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 21:41:57,768 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 09:41:57" (1/1) ... [2025-02-05 21:41:57,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355ff0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:57, skipping insertion in model container [2025-02-05 21:41:57,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 09:41:57" (1/1) ... [2025-02-05 21:41:57,792 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 21:41:57,915 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i[916,929] [2025-02-05 21:41:58,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 21:41:58,051 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 21:41:58,067 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i[916,929] [2025-02-05 21:41:58,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 21:41:58,135 INFO L204 MainTranslator]: Completed translation [2025-02-05 21:41:58,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58 WrapperNode [2025-02-05 21:41:58,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 21:41:58,138 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 21:41:58,138 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 21:41:58,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 21:41:58,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (1/1) ... [2025-02-05 21:41:58,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (1/1) ... [2025-02-05 21:41:58,191 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 510 [2025-02-05 21:41:58,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 21:41:58,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 21:41:58,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 21:41:58,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 21:41:58,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (1/1) ... [2025-02-05 21:41:58,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (1/1) ... [2025-02-05 21:41:58,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (1/1) ... [2025-02-05 21:41:58,240 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-05 21:41:58,241 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (1/1) ... [2025-02-05 21:41:58,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (1/1) ... [2025-02-05 21:41:58,258 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (1/1) ... [2025-02-05 21:41:58,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (1/1) ... [2025-02-05 21:41:58,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (1/1) ... [2025-02-05 21:41:58,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (1/1) ... [2025-02-05 21:41:58,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 21:41:58,281 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 21:41:58,282 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 21:41:58,282 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 21:41:58,283 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (1/1) ... [2025-02-05 21:41:58,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 21:41:58,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 21:41:58,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 21:41:58,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 21:41:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 21:41:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-05 21:41:58,339 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-05 21:41:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 21:41:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 21:41:58,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 21:41:58,432 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 21:41:58,433 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 21:41:59,047 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L430: havoc property_#t~bitwise51#1;havoc property_#t~short52#1; [2025-02-05 21:41:59,122 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-02-05 21:41:59,123 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 21:41:59,149 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 21:41:59,151 INFO L337 CfgBuilder]: Removed 1 assume(true) statements. [2025-02-05 21:41:59,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 09:41:59 BoogieIcfgContainer [2025-02-05 21:41:59,151 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 21:41:59,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 21:41:59,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 21:41:59,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 21:41:59,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 09:41:57" (1/3) ... [2025-02-05 21:41:59,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f95f08c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 09:41:59, skipping insertion in model container [2025-02-05 21:41:59,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:41:58" (2/3) ... [2025-02-05 21:41:59,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f95f08c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 09:41:59, skipping insertion in model container [2025-02-05 21:41:59,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 09:41:59" (3/3) ... [2025-02-05 21:41:59,160 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2025-02-05 21:41:59,174 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 21:41:59,176 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-95.i that has 2 procedures, 217 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 21:41:59,223 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 21:41:59,233 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;@46a659b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 21:41:59,233 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 21:41:59,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 217 states, 151 states have (on average 1.5496688741721854) internal successors, (234), 152 states have internal predecessors, (234), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2025-02-05 21:41:59,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2025-02-05 21:41:59,259 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:41:59,260 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:41:59,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:41:59,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:41:59,265 INFO L85 PathProgramCache]: Analyzing trace with hash -917540433, now seen corresponding path program 1 times [2025-02-05 21:41:59,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:41:59,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369908080] [2025-02-05 21:41:59,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:41:59,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:41:59,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 408 statements into 1 equivalence classes. [2025-02-05 21:41:59,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 408 of 408 statements. [2025-02-05 21:41:59,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:41:59,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:41:59,743 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 7688 trivial. 0 not checked. [2025-02-05 21:41:59,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:41:59,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369908080] [2025-02-05 21:41:59,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369908080] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 21:41:59,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642696485] [2025-02-05 21:41:59,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:41:59,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 21:41:59,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 21:41:59,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 21:41:59,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 21:41:59,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 408 statements into 1 equivalence classes. [2025-02-05 21:41:59,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 408 of 408 statements. [2025-02-05 21:41:59,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:41:59,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:41:59,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 21:41:59,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 21:42:00,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 7688 trivial. 0 not checked. [2025-02-05 21:42:00,041 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 21:42:00,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642696485] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:42:00,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 21:42:00,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-05 21:42:00,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704321528] [2025-02-05 21:42:00,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:42:00,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 21:42:00,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:42:00,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 21:42:00,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 21:42:00,070 INFO L87 Difference]: Start difference. First operand has 217 states, 151 states have (on average 1.5496688741721854) internal successors, (234), 152 states have internal predecessors, (234), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 2 states have call successors, (63) [2025-02-05 21:42:00,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:42:00,117 INFO L93 Difference]: Finished difference Result 427 states and 776 transitions. [2025-02-05 21:42:00,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 21:42:00,119 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 2 states have call successors, (63) Word has length 408 [2025-02-05 21:42:00,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:42:00,125 INFO L225 Difference]: With dead ends: 427 [2025-02-05 21:42:00,127 INFO L226 Difference]: Without dead ends: 213 [2025-02-05 21:42:00,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 21:42:00,132 INFO L435 NwaCegarLoop]: 344 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 21:42:00,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 344 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 21:42:00,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2025-02-05 21:42:00,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2025-02-05 21:42:00,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 148 states have (on average 1.527027027027027) internal successors, (226), 148 states have internal predecessors, (226), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2025-02-05 21:42:00,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 352 transitions. [2025-02-05 21:42:00,209 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 352 transitions. Word has length 408 [2025-02-05 21:42:00,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:42:00,209 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 352 transitions. [2025-02-05 21:42:00,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 2 states have call successors, (63) [2025-02-05 21:42:00,210 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 352 transitions. [2025-02-05 21:42:00,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2025-02-05 21:42:00,214 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:42:00,214 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:42:00,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-05 21:42:00,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-05 21:42:00,415 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:42:00,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:42:00,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1314740376, now seen corresponding path program 1 times [2025-02-05 21:42:00,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:42:00,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14840634] [2025-02-05 21:42:00,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:42:00,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:42:00,449 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 408 statements into 1 equivalence classes. [2025-02-05 21:42:00,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 408 of 408 statements. [2025-02-05 21:42:00,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:42:00,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:42:00,838 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2025-02-05 21:42:00,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:42:00,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14840634] [2025-02-05 21:42:00,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14840634] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:42:00,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:42:00,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 21:42:00,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299126003] [2025-02-05 21:42:00,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:42:00,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 21:42:00,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:42:00,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 21:42:00,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 21:42:00,844 INFO L87 Difference]: Start difference. First operand 213 states and 352 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2025-02-05 21:42:01,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:42:01,136 INFO L93 Difference]: Finished difference Result 775 states and 1286 transitions. [2025-02-05 21:42:01,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 21:42:01,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 408 [2025-02-05 21:42:01,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:42:01,150 INFO L225 Difference]: With dead ends: 775 [2025-02-05 21:42:01,150 INFO L226 Difference]: Without dead ends: 565 [2025-02-05 21:42:01,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 21:42:01,155 INFO L435 NwaCegarLoop]: 594 mSDtfsCounter, 576 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 21:42:01,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1507 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 21:42:01,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2025-02-05 21:42:01,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 556. [2025-02-05 21:42:01,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 429 states have (on average 1.5827505827505828) internal successors, (679), 432 states have internal predecessors, (679), 122 states have call successors, (122), 4 states have call predecessors, (122), 4 states have return successors, (122), 119 states have call predecessors, (122), 122 states have call successors, (122) [2025-02-05 21:42:01,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 923 transitions. [2025-02-05 21:42:01,244 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 923 transitions. Word has length 408 [2025-02-05 21:42:01,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:42:01,245 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 923 transitions. [2025-02-05 21:42:01,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2025-02-05 21:42:01,245 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 923 transitions. [2025-02-05 21:42:01,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2025-02-05 21:42:01,251 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:42:01,251 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:42:01,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 21:42:01,251 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:42:01,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:42:01,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1497520350, now seen corresponding path program 1 times [2025-02-05 21:42:01,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:42:01,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300038107] [2025-02-05 21:42:01,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:42:01,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:42:01,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 409 statements into 1 equivalence classes. [2025-02-05 21:42:01,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 409 of 409 statements. [2025-02-05 21:42:01,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:42:01,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:42:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2025-02-05 21:42:01,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:42:01,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300038107] [2025-02-05 21:42:01,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300038107] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:42:01,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:42:01,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 21:42:01,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652662348] [2025-02-05 21:42:01,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:42:01,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 21:42:01,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:42:01,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 21:42:01,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:42:01,965 INFO L87 Difference]: Start difference. First operand 556 states and 923 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2025-02-05 21:42:02,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:42:02,068 INFO L93 Difference]: Finished difference Result 1165 states and 1923 transitions. [2025-02-05 21:42:02,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 21:42:02,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 409 [2025-02-05 21:42:02,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:42:02,078 INFO L225 Difference]: With dead ends: 1165 [2025-02-05 21:42:02,079 INFO L226 Difference]: Without dead ends: 612 [2025-02-05 21:42:02,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:42:02,082 INFO L435 NwaCegarLoop]: 398 mSDtfsCounter, 214 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 21:42:02,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 600 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 21:42:02,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2025-02-05 21:42:02,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 611. [2025-02-05 21:42:02,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 454 states have (on average 1.5440528634361232) internal successors, (701), 458 states have internal predecessors, (701), 149 states have call successors, (149), 7 states have call predecessors, (149), 7 states have return successors, (149), 145 states have call predecessors, (149), 149 states have call successors, (149) [2025-02-05 21:42:02,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 999 transitions. [2025-02-05 21:42:02,137 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 999 transitions. Word has length 409 [2025-02-05 21:42:02,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:42:02,139 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 999 transitions. [2025-02-05 21:42:02,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2025-02-05 21:42:02,139 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 999 transitions. [2025-02-05 21:42:02,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2025-02-05 21:42:02,145 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:42:02,145 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:42:02,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 21:42:02,146 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:42:02,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:42:02,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1426839194, now seen corresponding path program 1 times [2025-02-05 21:42:02,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:42:02,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980812086] [2025-02-05 21:42:02,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:42:02,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:42:02,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 411 statements into 1 equivalence classes. [2025-02-05 21:42:02,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 411 of 411 statements. [2025-02-05 21:42:02,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:42:02,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:42:08,138 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2025-02-05 21:42:08,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:42:08,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980812086] [2025-02-05 21:42:08,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980812086] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:42:08,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:42:08,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2025-02-05 21:42:08,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703350782] [2025-02-05 21:42:08,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:42:08,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-05 21:42:08,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:42:08,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-05 21:42:08,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2025-02-05 21:42:08,142 INFO L87 Difference]: Start difference. First operand 611 states and 999 transitions. Second operand has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2025-02-05 21:42:17,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:42:17,966 INFO L93 Difference]: Finished difference Result 3164 states and 5136 transitions. [2025-02-05 21:42:17,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-05 21:42:17,966 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 411 [2025-02-05 21:42:17,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:42:17,983 INFO L225 Difference]: With dead ends: 3164 [2025-02-05 21:42:17,983 INFO L226 Difference]: Without dead ends: 2603 [2025-02-05 21:42:17,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2025-02-05 21:42:17,988 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 2298 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 4464 SdHoareTripleChecker+Invalid, 5026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2025-02-05 21:42:17,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 4464 Invalid, 5026 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [576 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2025-02-05 21:42:17,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2025-02-05 21:42:18,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2335. [2025-02-05 21:42:18,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 1843 states have (on average 1.5740640260444927) internal successors, (2901), 1861 states have internal predecessors, (2901), 458 states have call successors, (458), 33 states have call predecessors, (458), 33 states have return successors, (458), 440 states have call predecessors, (458), 458 states have call successors, (458) [2025-02-05 21:42:18,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3817 transitions. [2025-02-05 21:42:18,241 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3817 transitions. Word has length 411 [2025-02-05 21:42:18,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:42:18,242 INFO L471 AbstractCegarLoop]: Abstraction has 2335 states and 3817 transitions. [2025-02-05 21:42:18,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2025-02-05 21:42:18,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3817 transitions. [2025-02-05 21:42:18,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2025-02-05 21:42:18,250 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:42:18,250 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:42:18,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 21:42:18,251 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:42:18,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:42:18,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1215488281, now seen corresponding path program 1 times [2025-02-05 21:42:18,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:42:18,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835581283] [2025-02-05 21:42:18,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:42:18,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:42:18,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 411 statements into 1 equivalence classes. [2025-02-05 21:42:18,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 411 of 411 statements. [2025-02-05 21:42:18,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:42:18,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat