./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-4.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 64123f5116db47fa03ac4ec656265c4b4fc7f86761672b728533a9657e1ff5e6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 04:28:37,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 04:28:37,169 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 04:28:37,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 04:28:37,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 04:28:37,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 04:28:37,201 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 04:28:37,201 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 04:28:37,201 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 04:28:37,201 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 04:28:37,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 04:28:37,202 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 04:28:37,202 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 04:28:37,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 04:28:37,203 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 04:28:37,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 04:28:37,203 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 04:28:37,203 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 04:28:37,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 04:28:37,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 04:28:37,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 04:28:37,203 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 04:28:37,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 04:28:37,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 04:28:37,204 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 04:28:37,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 04:28:37,204 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 04:28:37,204 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 04:28:37,204 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 04:28:37,204 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 04:28:37,204 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 04:28:37,204 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 04:28:37,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 04:28:37,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 04:28:37,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 04:28:37,205 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 04:28:37,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 04:28:37,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 04:28:37,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 04:28:37,205 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 04:28:37,205 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 04:28:37,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 04:28:37,205 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 04:28:37,205 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/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 -> 64123f5116db47fa03ac4ec656265c4b4fc7f86761672b728533a9657e1ff5e6 [2025-03-17 04:28:37,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 04:28:37,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 04:28:37,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 04:28:37,465 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 04:28:37,465 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 04:28:37,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-4.i [2025-03-17 04:28:38,668 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af6e8c3ba/de72959270474d2db9a7c87d68c171e5/FLAG3ab398f42 [2025-03-17 04:28:38,956 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 04:28:38,957 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-4.i [2025-03-17 04:28:38,967 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af6e8c3ba/de72959270474d2db9a7c87d68c171e5/FLAG3ab398f42 [2025-03-17 04:28:39,260 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af6e8c3ba/de72959270474d2db9a7c87d68c171e5 [2025-03-17 04:28:39,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 04:28:39,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 04:28:39,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 04:28:39,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 04:28:39,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 04:28:39,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e879e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39, skipping insertion in model container [2025-03-17 04:28:39,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,297 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 04:28:39,410 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-4.i[915,928] [2025-03-17 04:28:39,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 04:28:39,577 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 04:28:39,587 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-4.i[915,928] [2025-03-17 04:28:39,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 04:28:39,698 INFO L204 MainTranslator]: Completed translation [2025-03-17 04:28:39,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39 WrapperNode [2025-03-17 04:28:39,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 04:28:39,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 04:28:39,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 04:28:39,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 04:28:39,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,795 INFO L138 Inliner]: procedures = 26, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 381 [2025-03-17 04:28:39,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 04:28:39,797 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 04:28:39,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 04:28:39,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 04:28:39,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,817 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,862 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]. [2025-03-17 04:28:39,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,895 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,917 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 04:28:39,933 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 04:28:39,934 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 04:28:39,934 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 04:28:39,935 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (1/1) ... [2025-03-17 04:28:39,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 04:28:39,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:28:39,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 04:28:39,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 04:28:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 04:28:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 04:28:40,013 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 04:28:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 04:28:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 04:28:40,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 04:28:40,128 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 04:28:40,131 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 04:28:40,783 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L359: havoc property_#t~ite33#1;havoc property_#t~bitwise32#1;havoc property_#t~short34#1; [2025-03-17 04:28:40,849 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2025-03-17 04:28:40,850 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 04:28:40,880 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 04:28:40,880 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 04:28:40,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:28:40 BoogieIcfgContainer [2025-03-17 04:28:40,881 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 04:28:40,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 04:28:40,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 04:28:40,889 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 04:28:40,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 04:28:39" (1/3) ... [2025-03-17 04:28:40,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59aee44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:28:40, skipping insertion in model container [2025-03-17 04:28:40,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:28:39" (2/3) ... [2025-03-17 04:28:40,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59aee44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:28:40, skipping insertion in model container [2025-03-17 04:28:40,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:28:40" (3/3) ... [2025-03-17 04:28:40,893 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-4.i [2025-03-17 04:28:40,910 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 04:28:40,913 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount250_file-4.i that has 2 procedures, 153 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 04:28:40,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 04:28:40,982 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;@30dea236, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 04:28:40,982 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 04:28:40,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 103 states have (on average 1.4854368932038835) internal successors, (153), 104 states have internal predecessors, (153), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-03-17 04:28:41,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2025-03-17 04:28:41,002 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:28:41,003 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:28:41,003 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:28:41,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:28:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1029909142, now seen corresponding path program 1 times [2025-03-17 04:28:41,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:28:41,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353031736] [2025-03-17 04:28:41,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:28:41,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:28:41,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 308 statements into 1 equivalence classes. [2025-03-17 04:28:41,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 308 of 308 statements. [2025-03-17 04:28:41,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:28:41,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:28:41,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2025-03-17 04:28:41,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:28:41,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353031736] [2025-03-17 04:28:41,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353031736] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 04:28:41,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987070789] [2025-03-17 04:28:41,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:28:41,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 04:28:41,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:28:41,586 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 04:28:41,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 04:28:41,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 308 statements into 1 equivalence classes. [2025-03-17 04:28:41,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 308 of 308 statements. [2025-03-17 04:28:41,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:28:41,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:28:41,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 04:28:41,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 04:28:41,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2025-03-17 04:28:41,940 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 04:28:41,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987070789] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 04:28:41,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 04:28:41,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 04:28:41,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709441884] [2025-03-17 04:28:41,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 04:28:41,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 04:28:41,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:28:41,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 04:28:41,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 04:28:41,968 INFO L87 Difference]: Start difference. First operand has 153 states, 103 states have (on average 1.4854368932038835) internal successors, (153), 104 states have internal predecessors, (153), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 2 states have call successors, (47) [2025-03-17 04:28:42,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:28:42,025 INFO L93 Difference]: Finished difference Result 303 states and 539 transitions. [2025-03-17 04:28:42,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 04:28:42,029 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 2 states have call successors, (47) Word has length 308 [2025-03-17 04:28:42,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:28:42,035 INFO L225 Difference]: With dead ends: 303 [2025-03-17 04:28:42,036 INFO L226 Difference]: Without dead ends: 151 [2025-03-17 04:28:42,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 04:28:42,046 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 04:28:42,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 04:28:42,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2025-03-17 04:28:42,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2025-03-17 04:28:42,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 102 states have (on average 1.4607843137254901) internal successors, (149), 102 states have internal predecessors, (149), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-03-17 04:28:42,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 243 transitions. [2025-03-17 04:28:42,119 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 243 transitions. Word has length 308 [2025-03-17 04:28:42,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:28:42,121 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 243 transitions. [2025-03-17 04:28:42,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 2 states have call successors, (47) [2025-03-17 04:28:42,122 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 243 transitions. [2025-03-17 04:28:42,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2025-03-17 04:28:42,131 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:28:42,132 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:28:42,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 04:28:42,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 04:28:42,333 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:28:42,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:28:42,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1057278705, now seen corresponding path program 1 times [2025-03-17 04:28:42,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:28:42,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110833218] [2025-03-17 04:28:42,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:28:42,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:28:42,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 308 statements into 1 equivalence classes. [2025-03-17 04:28:42,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 308 of 308 statements. [2025-03-17 04:28:42,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:28:42,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:28:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-03-17 04:28:43,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:28:43,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110833218] [2025-03-17 04:28:43,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110833218] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 04:28:43,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 04:28:43,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 04:28:43,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107326332] [2025-03-17 04:28:43,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 04:28:43,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 04:28:43,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:28:43,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 04:28:43,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 04:28:43,010 INFO L87 Difference]: Start difference. First operand 151 states and 243 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2025-03-17 04:28:43,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:28:43,336 INFO L93 Difference]: Finished difference Result 419 states and 673 transitions. [2025-03-17 04:28:43,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 04:28:43,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 308 [2025-03-17 04:28:43,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:28:43,342 INFO L225 Difference]: With dead ends: 419 [2025-03-17 04:28:43,342 INFO L226 Difference]: Without dead ends: 269 [2025-03-17 04:28:43,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 04:28:43,345 INFO L435 NwaCegarLoop]: 414 mSDtfsCounter, 182 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 04:28:43,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 940 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 04:28:43,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2025-03-17 04:28:43,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 155. [2025-03-17 04:28:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 106 states have (on average 1.4622641509433962) internal successors, (155), 106 states have internal predecessors, (155), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-03-17 04:28:43,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 249 transitions. [2025-03-17 04:28:43,376 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 249 transitions. Word has length 308 [2025-03-17 04:28:43,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:28:43,379 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 249 transitions. [2025-03-17 04:28:43,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2025-03-17 04:28:43,379 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 249 transitions. [2025-03-17 04:28:43,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2025-03-17 04:28:43,382 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:28:43,382 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:28:43,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 04:28:43,382 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:28:43,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:28:43,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1730136782, now seen corresponding path program 1 times [2025-03-17 04:28:43,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:28:43,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669318805] [2025-03-17 04:28:43,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:28:43,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:28:43,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 308 statements into 1 equivalence classes. [2025-03-17 04:28:43,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 308 of 308 statements. [2025-03-17 04:28:43,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:28:43,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:28:44,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-03-17 04:28:44,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:28:44,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669318805] [2025-03-17 04:28:44,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669318805] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 04:28:44,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 04:28:44,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 04:28:44,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006963546] [2025-03-17 04:28:44,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 04:28:44,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 04:28:44,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:28:44,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 04:28:44,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 04:28:44,345 INFO L87 Difference]: Start difference. First operand 155 states and 249 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2025-03-17 04:28:44,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:28:44,624 INFO L93 Difference]: Finished difference Result 464 states and 746 transitions. [2025-03-17 04:28:44,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 04:28:44,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 308 [2025-03-17 04:28:44,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:28:44,631 INFO L225 Difference]: With dead ends: 464 [2025-03-17 04:28:44,631 INFO L226 Difference]: Without dead ends: 310 [2025-03-17 04:28:44,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 04:28:44,633 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 201 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 04:28:44,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 707 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 04:28:44,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2025-03-17 04:28:44,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 246. [2025-03-17 04:28:44,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 149 states have (on average 1.3825503355704698) internal successors, (206), 149 states have internal predecessors, (206), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-17 04:28:44,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 394 transitions. [2025-03-17 04:28:44,673 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 394 transitions. Word has length 308 [2025-03-17 04:28:44,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:28:44,674 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 394 transitions. [2025-03-17 04:28:44,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2025-03-17 04:28:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 394 transitions. [2025-03-17 04:28:44,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2025-03-17 04:28:44,677 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:28:44,678 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:28:44,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 04:28:44,678 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:28:44,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:28:44,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1400371021, now seen corresponding path program 1 times [2025-03-17 04:28:44,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:28:44,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293118020] [2025-03-17 04:28:44,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:28:44,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:28:44,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 308 statements into 1 equivalence classes. [2025-03-17 04:28:44,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 308 of 308 statements. [2025-03-17 04:28:44,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:28:44,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:28:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-03-17 04:28:45,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:28:45,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293118020] [2025-03-17 04:28:45,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293118020] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 04:28:45,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 04:28:45,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 04:28:45,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088176227] [2025-03-17 04:28:45,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 04:28:45,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 04:28:45,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:28:45,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 04:28:45,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 04:28:45,265 INFO L87 Difference]: Start difference. First operand 246 states and 394 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2025-03-17 04:28:45,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:28:45,484 INFO L93 Difference]: Finished difference Result 458 states and 735 transitions. [2025-03-17 04:28:45,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 04:28:45,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 308 [2025-03-17 04:28:45,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:28:45,487 INFO L225 Difference]: With dead ends: 458 [2025-03-17 04:28:45,487 INFO L226 Difference]: Without dead ends: 304 [2025-03-17 04:28:45,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 04:28:45,490 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 78 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 04:28:45,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 510 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 04:28:45,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2025-03-17 04:28:45,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 258. [2025-03-17 04:28:45,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 161 states have (on average 1.3975155279503106) internal successors, (225), 161 states have internal predecessors, (225), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-17 04:28:45,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 413 transitions. [2025-03-17 04:28:45,513 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 413 transitions. Word has length 308 [2025-03-17 04:28:45,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:28:45,513 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 413 transitions. [2025-03-17 04:28:45,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2025-03-17 04:28:45,515 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 413 transitions. [2025-03-17 04:28:45,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2025-03-17 04:28:45,517 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:28:45,517 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:28:45,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 04:28:45,518 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:28:45,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:28:45,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1049571084, now seen corresponding path program 1 times [2025-03-17 04:28:45,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:28:45,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425211527] [2025-03-17 04:28:45,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:28:45,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:28:45,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 308 statements into 1 equivalence classes. [2025-03-17 04:28:45,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 308 of 308 statements. [2025-03-17 04:28:45,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:28:45,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:28:46,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 18 proven. 120 refuted. 0 times theorem prover too weak. 4186 trivial. 0 not checked. [2025-03-17 04:28:46,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:28:46,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425211527] [2025-03-17 04:28:46,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425211527] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 04:28:46,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654077236] [2025-03-17 04:28:46,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:28:46,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 04:28:46,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:28:46,582 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 04:28:46,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 04:28:46,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 308 statements into 1 equivalence classes. [2025-03-17 04:28:46,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 308 of 308 statements. [2025-03-17 04:28:46,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:28:46,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:28:46,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-03-17 04:28:46,815 INFO L279 TraceCheckSpWp]: Computing forward predicates...