./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-56.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_codestructure_dependencies_file-56.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 539a31c92191ccf499583caefdee83885e5c729e76b73005b4b9f92310978df4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 20:22:36,834 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 20:22:36,885 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 20:22:36,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 20:22:36,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 20:22:36,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 20:22:36,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 20:22:36,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 20:22:36,915 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 20:22:36,915 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 20:22:36,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 20:22:36,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 20:22:36,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 20:22:36,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 20:22:36,916 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 20:22:36,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 20:22:36,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 20:22:36,916 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 20:22:36,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 20:22:36,916 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 20:22:36,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 20:22:36,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 20:22:36,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 20:22:36,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 20:22:36,917 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 20:22:36,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 20:22:36,917 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 20:22:36,917 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 20:22:36,917 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 20:22:36,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 20:22:36,917 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 20:22:36,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 20:22:36,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 20:22:36,918 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 20:22:36,918 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 20:22:36,918 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 20:22:36,918 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 20:22:36,918 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 20:22:36,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 20:22:36,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 20:22:36,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 20:22:36,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 20:22:36,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 20:22:36,918 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 -> 539a31c92191ccf499583caefdee83885e5c729e76b73005b4b9f92310978df4 [2025-02-05 20:22:37,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 20:22:37,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 20:22:37,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 20:22:37,130 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 20:22:37,130 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 20:22:37,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-56.i [2025-02-05 20:22:38,364 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a1d7f2b0/cb6fdc62a80e4ebba72e91e251d5e5e3/FLAGec8d8f3e8 [2025-02-05 20:22:38,647 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 20:22:38,648 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-56.i [2025-02-05 20:22:38,655 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a1d7f2b0/cb6fdc62a80e4ebba72e91e251d5e5e3/FLAGec8d8f3e8 [2025-02-05 20:22:38,673 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a1d7f2b0/cb6fdc62a80e4ebba72e91e251d5e5e3 [2025-02-05 20:22:38,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 20:22:38,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 20:22:38,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 20:22:38,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 20:22:38,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 20:22:38,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:38,683 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482e36f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38, skipping insertion in model container [2025-02-05 20:22:38,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:38,700 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 20:22:38,805 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_codestructure_dependencies_file-56.i[919,932] [2025-02-05 20:22:38,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 20:22:38,875 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 20:22:38,882 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_codestructure_dependencies_file-56.i[919,932] [2025-02-05 20:22:38,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 20:22:38,931 INFO L204 MainTranslator]: Completed translation [2025-02-05 20:22:38,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38 WrapperNode [2025-02-05 20:22:38,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 20:22:38,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 20:22:38,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 20:22:38,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 20:22:38,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:38,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:38,993 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 127 [2025-02-05 20:22:38,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 20:22:38,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 20:22:38,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 20:22:38,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 20:22:39,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:39,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:39,007 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:39,036 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 20:22:39,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:39,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:39,049 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:39,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:39,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:39,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:39,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 20:22:39,063 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 20:22:39,063 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 20:22:39,063 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 20:22:39,064 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (1/1) ... [2025-02-05 20:22:39,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 20:22:39,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 20:22:39,088 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 20:22:39,098 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 20:22:39,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 20:22:39,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-05 20:22:39,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-05 20:22:39,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 20:22:39,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 20:22:39,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 20:22:39,169 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 20:22:39,171 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 20:22:39,434 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-02-05 20:22:39,434 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 20:22:39,445 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 20:22:39,445 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 20:22:39,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 08:22:39 BoogieIcfgContainer [2025-02-05 20:22:39,445 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 20:22:39,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 20:22:39,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 20:22:39,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 20:22:39,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 08:22:38" (1/3) ... [2025-02-05 20:22:39,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681ccc50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 08:22:39, skipping insertion in model container [2025-02-05 20:22:39,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:22:38" (2/3) ... [2025-02-05 20:22:39,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681ccc50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 08:22:39, skipping insertion in model container [2025-02-05 20:22:39,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 08:22:39" (3/3) ... [2025-02-05 20:22:39,456 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-56.i [2025-02-05 20:22:39,466 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 20:22:39,468 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_dependencies_file-56.i that has 2 procedures, 59 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 20:22:39,514 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 20:22:39,523 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;@7e3b1dd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 20:22:39,523 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 20:22:39,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-02-05 20:22:39,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-05 20:22:39,535 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:22:39,535 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:39,536 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:22:39,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:22:39,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1876396669, now seen corresponding path program 1 times [2025-02-05 20:22:39,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:22:39,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612744171] [2025-02-05 20:22:39,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:22:39,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:22:39,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-05 20:22:39,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-05 20:22:39,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:22:39,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:22:39,772 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2025-02-05 20:22:39,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:22:39,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612744171] [2025-02-05 20:22:39,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612744171] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 20:22:39,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729346672] [2025-02-05 20:22:39,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:22:39,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 20:22:39,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 20:22:39,781 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 20:22:39,782 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 20:22:39,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-05 20:22:39,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-05 20:22:39,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:22:39,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:22:39,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 20:22:39,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 20:22:39,972 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2025-02-05 20:22:39,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 20:22:39,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729346672] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:22:39,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 20:22:39,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-05 20:22:39,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935454381] [2025-02-05 20:22:39,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:22:39,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 20:22:39,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:22:39,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 20:22:39,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 20:22:39,999 INFO L87 Difference]: Start difference. First operand has 59 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-05 20:22:40,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:22:40,024 INFO L93 Difference]: Finished difference Result 112 states and 195 transitions. [2025-02-05 20:22:40,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 20:22:40,026 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 137 [2025-02-05 20:22:40,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:22:40,033 INFO L225 Difference]: With dead ends: 112 [2025-02-05 20:22:40,033 INFO L226 Difference]: Without dead ends: 56 [2025-02-05 20:22:40,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 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 20:22:40,038 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 20:22:40,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 20:22:40,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-02-05 20:22:40,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-02-05 20:22:40,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-02-05 20:22:40,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 83 transitions. [2025-02-05 20:22:40,073 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 83 transitions. Word has length 137 [2025-02-05 20:22:40,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:22:40,073 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 83 transitions. [2025-02-05 20:22:40,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-05 20:22:40,074 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 83 transitions. [2025-02-05 20:22:40,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-05 20:22:40,075 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:22:40,076 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:40,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 20:22:40,276 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 20:22:40,277 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:22:40,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:22:40,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1746764003, now seen corresponding path program 1 times [2025-02-05 20:22:40,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:22:40,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412833588] [2025-02-05 20:22:40,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:22:40,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:22:40,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-05 20:22:40,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-05 20:22:40,388 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:22:40,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:22:40,907 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-02-05 20:22:40,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:22:40,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412833588] [2025-02-05 20:22:40,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412833588] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:22:40,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:22:40,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 20:22:40,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662741379] [2025-02-05 20:22:40,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:22:40,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 20:22:40,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:22:40,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 20:22:40,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 20:22:40,912 INFO L87 Difference]: Start difference. First operand 56 states and 83 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-05 20:22:40,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:22:40,996 INFO L93 Difference]: Finished difference Result 147 states and 213 transitions. [2025-02-05 20:22:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 20:22:40,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 137 [2025-02-05 20:22:40,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:22:40,999 INFO L225 Difference]: With dead ends: 147 [2025-02-05 20:22:40,999 INFO L226 Difference]: Without dead ends: 94 [2025-02-05 20:22:40,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 20:22:41,000 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 64 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 20:22:41,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 174 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 20:22:41,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2025-02-05 20:22:41,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 78. [2025-02-05 20:22:41,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 50 states have internal predecessors, (61), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2025-02-05 20:22:41,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2025-02-05 20:22:41,014 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 113 transitions. Word has length 137 [2025-02-05 20:22:41,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:22:41,016 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 113 transitions. [2025-02-05 20:22:41,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-05 20:22:41,017 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 113 transitions. [2025-02-05 20:22:41,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-05 20:22:41,018 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:22:41,018 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:41,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 20:22:41,018 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:22:41,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:22:41,019 INFO L85 PathProgramCache]: Analyzing trace with hash -859260322, now seen corresponding path program 1 times [2025-02-05 20:22:41,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:22:41,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721289784] [2025-02-05 20:22:41,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:22:41,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:22:41,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-05 20:22:41,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-05 20:22:41,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:22:41,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat