./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-programs/partial_mod_count_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 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/array-programs/partial_mod_count_5.c -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 9442e044a28de8db50c4a8a0eb4a8445fbcad0aeea133121bbafc8536c8e355f --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-08 22:20:51,064 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-08 22:20:51,129 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-08 22:20:51,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-08 22:20:51,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-08 22:20:51,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-08 22:20:51,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-08 22:20:51,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-08 22:20:51,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-08 22:20:51,160 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-08 22:20:51,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-08 22:20:51,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-08 22:20:51,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-08 22:20:51,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-08 22:20:51,161 INFO L153 SettingsManager]: * Use SBE=true [2025-01-08 22:20:51,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-08 22:20:51,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-08 22:20:51,162 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-08 22:20:51,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-08 22:20:51,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-08 22:20:51,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-08 22:20:51,162 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-08 22:20:51,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-08 22:20:51,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-08 22:20:51,162 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-08 22:20:51,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-08 22:20:51,163 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-08 22:20:51,163 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-08 22:20:51,163 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-08 22:20:51,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 22:20:51,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 22:20:51,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 22:20:51,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 22:20:51,164 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-08 22:20:51,164 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 22:20:51,164 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 22:20:51,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 22:20:51,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 22:20:51,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-08 22:20:51,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-08 22:20:51,164 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-08 22:20:51,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-08 22:20:51,164 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-08 22:20:51,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-08 22:20:51,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-08 22:20:51,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-08 22:20:51,165 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-08 22:20:51,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-08 22:20:51,165 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 -> 9442e044a28de8db50c4a8a0eb4a8445fbcad0aeea133121bbafc8536c8e355f [2025-01-08 22:20:51,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-08 22:20:51,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-08 22:20:51,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-08 22:20:51,405 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-08 22:20:51,406 INFO L274 PluginConnector]: CDTParser initialized [2025-01-08 22:20:51,406 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-programs/partial_mod_count_5.c [2025-01-08 22:20:52,597 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2135b5db9/83bd1a4ae4ef42478622b509f6efd94f/FLAG9e2e41908 [2025-01-08 22:20:52,821 INFO L384 CDTParser]: Found 1 translation units. [2025-01-08 22:20:52,822 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-programs/partial_mod_count_5.c [2025-01-08 22:20:52,834 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2135b5db9/83bd1a4ae4ef42478622b509f6efd94f/FLAG9e2e41908 [2025-01-08 22:20:52,856 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2135b5db9/83bd1a4ae4ef42478622b509f6efd94f [2025-01-08 22:20:52,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-08 22:20:52,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-08 22:20:52,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-08 22:20:52,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-08 22:20:52,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-08 22:20:52,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 10:20:52" (1/1) ... [2025-01-08 22:20:52,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e635ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:52, skipping insertion in model container [2025-01-08 22:20:52,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 10:20:52" (1/1) ... [2025-01-08 22:20:52,874 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-08 22:20:52,968 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/array-programs/partial_mod_count_5.c[323,336] [2025-01-08 22:20:52,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 22:20:52,987 INFO L200 MainTranslator]: Completed pre-run [2025-01-08 22:20:52,994 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/array-programs/partial_mod_count_5.c[323,336] [2025-01-08 22:20:52,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 22:20:53,008 INFO L204 MainTranslator]: Completed translation [2025-01-08 22:20:53,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53 WrapperNode [2025-01-08 22:20:53,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-08 22:20:53,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-08 22:20:53,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-08 22:20:53,011 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-08 22:20:53,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,032 INFO L138 Inliner]: procedures = 13, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2025-01-08 22:20:53,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-08 22:20:53,033 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-08 22:20:53,033 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-08 22:20:53,033 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-08 22:20:53,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,050 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2025-01-08 22:20:53,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,054 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-08 22:20:53,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-08 22:20:53,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-08 22:20:53,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-08 22:20:53,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (1/1) ... [2025-01-08 22:20:53,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 22:20:53,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:20:53,089 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) [2025-01-08 22:20:53,091 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 [2025-01-08 22:20:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-08 22:20:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-08 22:20:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-08 22:20:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-08 22:20:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-08 22:20:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-08 22:20:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-08 22:20:53,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-08 22:20:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-08 22:20:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-08 22:20:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-08 22:20:53,150 INFO L234 CfgBuilder]: Building ICFG [2025-01-08 22:20:53,152 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-08 22:20:53,256 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-01-08 22:20:53,256 INFO L283 CfgBuilder]: Performing block encoding [2025-01-08 22:20:53,264 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-08 22:20:53,264 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-08 22:20:53,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 10:20:53 BoogieIcfgContainer [2025-01-08 22:20:53,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-08 22:20:53,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-08 22:20:53,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-08 22:20:53,270 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-08 22:20:53,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.01 10:20:52" (1/3) ... [2025-01-08 22:20:53,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b70f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 10:20:53, skipping insertion in model container [2025-01-08 22:20:53,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:20:53" (2/3) ... [2025-01-08 22:20:53,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b70f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 10:20:53, skipping insertion in model container [2025-01-08 22:20:53,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 10:20:53" (3/3) ... [2025-01-08 22:20:53,272 INFO L128 eAbstractionObserver]: Analyzing ICFG partial_mod_count_5.c [2025-01-08 22:20:53,281 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-08 22:20:53,283 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG partial_mod_count_5.c that has 1 procedures, 15 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-08 22:20:53,317 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-08 22:20:53,324 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;@3baec6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-08 22:20:53,325 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-08 22:20:53,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:53,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-08 22:20:53,331 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:20:53,331 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:20:53,332 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:20:53,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:20:53,335 INFO L85 PathProgramCache]: Analyzing trace with hash 415218381, now seen corresponding path program 1 times [2025-01-08 22:20:53,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:20:53,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479107394] [2025-01-08 22:20:53,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:20:53,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:20:53,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-08 22:20:53,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-08 22:20:53,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:20:53,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:20:53,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 22:20:53,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:20:53,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479107394] [2025-01-08 22:20:53,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479107394] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 22:20:53,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 22:20:53,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 22:20:53,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674603087] [2025-01-08 22:20:53,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 22:20:53,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 22:20:53,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:20:53,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 22:20:53,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 22:20:53,515 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:53,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:20:53,556 INFO L93 Difference]: Finished difference Result 38 states and 51 transitions. [2025-01-08 22:20:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 22:20:53,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-01-08 22:20:53,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:20:53,564 INFO L225 Difference]: With dead ends: 38 [2025-01-08 22:20:53,564 INFO L226 Difference]: Without dead ends: 22 [2025-01-08 22:20:53,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 22:20:53,570 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:20:53,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 14 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-08 22:20:53,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-01-08 22:20:53,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 14. [2025-01-08 22:20:53,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:53,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2025-01-08 22:20:53,590 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 8 [2025-01-08 22:20:53,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:20:53,590 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2025-01-08 22:20:53,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:53,591 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2025-01-08 22:20:53,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-08 22:20:53,591 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:20:53,591 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:20:53,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-08 22:20:53,592 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:20:53,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:20:53,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1427380529, now seen corresponding path program 1 times [2025-01-08 22:20:53,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:20:53,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612731915] [2025-01-08 22:20:53,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:20:53,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:20:53,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-08 22:20:53,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-08 22:20:53,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:20:53,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:20:53,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 22:20:53,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:20:53,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612731915] [2025-01-08 22:20:53,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612731915] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:20:53,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210951417] [2025-01-08 22:20:53,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:20:53,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:20:53,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:20:53,692 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) [2025-01-08 22:20:53,693 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 [2025-01-08 22:20:53,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-08 22:20:53,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-08 22:20:53,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:20:53,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:20:53,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-08 22:20:53,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:20:53,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 22:20:53,806 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:20:53,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 22:20:53,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210951417] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:20:53,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:20:53,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-01-08 22:20:53,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670671305] [2025-01-08 22:20:53,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:20:53,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-08 22:20:53,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:20:53,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-08 22:20:53,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2025-01-08 22:20:53,835 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:53,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:20:53,909 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions. [2025-01-08 22:20:53,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-08 22:20:53,909 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-01-08 22:20:53,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:20:53,910 INFO L225 Difference]: With dead ends: 54 [2025-01-08 22:20:53,910 INFO L226 Difference]: Without dead ends: 44 [2025-01-08 22:20:53,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2025-01-08 22:20:53,911 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 105 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:20:53,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 31 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-08 22:20:53,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2025-01-08 22:20:53,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 22. [2025-01-08 22:20:53,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2025-01-08 22:20:53,928 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 11 [2025-01-08 22:20:53,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:20:53,929 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2025-01-08 22:20:53,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:53,929 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2025-01-08 22:20:53,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-01-08 22:20:53,930 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:20:53,930 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:20:53,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-08 22:20:54,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:20:54,135 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:20:54,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:20:54,136 INFO L85 PathProgramCache]: Analyzing trace with hash -667599603, now seen corresponding path program 1 times [2025-01-08 22:20:54,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:20:54,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151026396] [2025-01-08 22:20:54,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:20:54,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:20:54,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-08 22:20:54,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-08 22:20:54,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:20:54,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:20:54,403 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-08 22:20:54,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:20:54,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151026396] [2025-01-08 22:20:54,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151026396] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:20:54,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396545338] [2025-01-08 22:20:54,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:20:54,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:20:54,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:20:54,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:20:54,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-08 22:20:54,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-08 22:20:54,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-08 22:20:54,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:20:54,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:20:54,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-08 22:20:54,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:20:54,533 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 22:20:54,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:20:54,609 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 22:20:54,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396545338] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:20:54,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:20:54,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 16 [2025-01-08 22:20:54,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097085919] [2025-01-08 22:20:54,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:20:54,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-08 22:20:54,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:20:54,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-08 22:20:54,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=165, Unknown=0, NotChecked=0, Total=272 [2025-01-08 22:20:54,611 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:54,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:20:54,808 INFO L93 Difference]: Finished difference Result 118 states and 144 transitions. [2025-01-08 22:20:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-08 22:20:54,809 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2025-01-08 22:20:54,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:20:54,810 INFO L225 Difference]: With dead ends: 118 [2025-01-08 22:20:54,810 INFO L226 Difference]: Without dead ends: 106 [2025-01-08 22:20:54,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=280, Unknown=0, NotChecked=0, Total=462 [2025-01-08 22:20:54,811 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 335 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:20:54,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 61 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:20:54,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2025-01-08 22:20:54,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 40. [2025-01-08 22:20:54,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.205128205128205) internal successors, (47), 39 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2025-01-08 22:20:54,822 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 20 [2025-01-08 22:20:54,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:20:54,822 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2025-01-08 22:20:54,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:54,823 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2025-01-08 22:20:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-01-08 22:20:54,823 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:20:54,823 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:20:54,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-08 22:20:55,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:20:55,024 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:20:55,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:20:55,025 INFO L85 PathProgramCache]: Analyzing trace with hash -829396145, now seen corresponding path program 2 times [2025-01-08 22:20:55,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:20:55,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338386354] [2025-01-08 22:20:55,025 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-08 22:20:55,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:20:55,042 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 2 equivalence classes. [2025-01-08 22:20:55,048 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 38 statements. [2025-01-08 22:20:55,049 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-08 22:20:55,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:20:55,114 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-01-08 22:20:55,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:20:55,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338386354] [2025-01-08 22:20:55,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338386354] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 22:20:55,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 22:20:55,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-08 22:20:55,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243361131] [2025-01-08 22:20:55,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 22:20:55,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-08 22:20:55,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:20:55,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-08 22:20:55,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-08 22:20:55,117 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:55,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:20:55,164 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2025-01-08 22:20:55,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-08 22:20:55,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2025-01-08 22:20:55,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:20:55,165 INFO L225 Difference]: With dead ends: 52 [2025-01-08 22:20:55,168 INFO L226 Difference]: Without dead ends: 50 [2025-01-08 22:20:55,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-01-08 22:20:55,169 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 25 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:20:55,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 20 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-08 22:20:55,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-01-08 22:20:55,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2025-01-08 22:20:55,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.2040816326530612) internal successors, (59), 49 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:55,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2025-01-08 22:20:55,179 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 38 [2025-01-08 22:20:55,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:20:55,179 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2025-01-08 22:20:55,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:55,179 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2025-01-08 22:20:55,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-01-08 22:20:55,183 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:20:55,183 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:20:55,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-08 22:20:55,183 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:20:55,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:20:55,183 INFO L85 PathProgramCache]: Analyzing trace with hash -85535382, now seen corresponding path program 1 times [2025-01-08 22:20:55,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:20:55,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601822008] [2025-01-08 22:20:55,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:20:55,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:20:55,195 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-08 22:20:55,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-08 22:20:55,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:20:55,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:20:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 73 proven. 57 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-08 22:20:55,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:20:55,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601822008] [2025-01-08 22:20:55,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601822008] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:20:55,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348691462] [2025-01-08 22:20:55,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:20:55,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:20:55,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:20:55,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:20:55,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-08 22:20:55,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-08 22:20:55,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-08 22:20:55,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:20:55,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:20:55,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-08 22:20:55,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:20:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:20:55,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:20:56,224 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:20:56,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348691462] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:20:56,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:20:56,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2025-01-08 22:20:56,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112122934] [2025-01-08 22:20:56,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:20:56,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-01-08 22:20:56,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:20:56,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-01-08 22:20:56,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=389, Invalid=667, Unknown=0, NotChecked=0, Total=1056 [2025-01-08 22:20:56,226 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 33 states, 33 states have (on average 2.9696969696969697) internal successors, (98), 32 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:56,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:20:56,704 INFO L93 Difference]: Finished difference Result 477 states and 576 transitions. [2025-01-08 22:20:56,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-08 22:20:56,705 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.9696969696969697) internal successors, (98), 32 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2025-01-08 22:20:56,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:20:56,706 INFO L225 Difference]: With dead ends: 477 [2025-01-08 22:20:56,706 INFO L226 Difference]: Without dead ends: 446 [2025-01-08 22:20:56,707 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=686, Invalid=1206, Unknown=0, NotChecked=0, Total=1892 [2025-01-08 22:20:56,708 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 771 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-08 22:20:56,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 136 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-08 22:20:56,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2025-01-08 22:20:56,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 86. [2025-01-08 22:20:56,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.188235294117647) internal successors, (101), 85 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:56,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 101 transitions. [2025-01-08 22:20:56,731 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 101 transitions. Word has length 43 [2025-01-08 22:20:56,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:20:56,732 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 101 transitions. [2025-01-08 22:20:56,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.9696969696969697) internal successors, (98), 32 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:20:56,732 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 101 transitions. [2025-01-08 22:20:56,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-01-08 22:20:56,733 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:20:56,733 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:20:56,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-08 22:20:56,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:20:56,934 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:20:56,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:20:56,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1839330090, now seen corresponding path program 2 times [2025-01-08 22:20:56,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:20:56,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262146179] [2025-01-08 22:20:56,934 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-08 22:20:56,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:20:56,957 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-01-08 22:20:56,995 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-01-08 22:20:56,996 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-08 22:20:56,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:20:57,526 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2025-01-08 22:20:57,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:20:57,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262146179] [2025-01-08 22:20:57,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262146179] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:20:57,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335430391] [2025-01-08 22:20:57,526 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-08 22:20:57,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:20:57,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:20:57,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:20:57,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-08 22:20:57,580 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-01-08 22:20:57,612 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-01-08 22:20:57,612 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-08 22:20:57,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:20:57,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-08 22:20:57,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:20:58,188 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:20:58,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:20:58,772 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:20:58,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335430391] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:20:58,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:20:58,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 25, 25] total 53 [2025-01-08 22:20:58,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777412136] [2025-01-08 22:20:58,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:20:58,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2025-01-08 22:20:58,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:20:58,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2025-01-08 22:20:58,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1196, Invalid=1666, Unknown=0, NotChecked=0, Total=2862 [2025-01-08 22:20:58,776 INFO L87 Difference]: Start difference. First operand 86 states and 101 transitions. Second operand has 54 states, 54 states have (on average 2.962962962962963) internal successors, (160), 53 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:21:08,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:21:08,693 INFO L93 Difference]: Finished difference Result 1210 states and 1505 transitions. [2025-01-08 22:21:08,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 324 states. [2025-01-08 22:21:08,694 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 2.962962962962963) internal successors, (160), 53 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2025-01-08 22:21:08,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:21:08,700 INFO L225 Difference]: With dead ends: 1210 [2025-01-08 22:21:08,704 INFO L226 Difference]: Without dead ends: 1161 [2025-01-08 22:21:08,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 349 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59421 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=34347, Invalid=88503, Unknown=0, NotChecked=0, Total=122850 [2025-01-08 22:21:08,742 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 1979 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:21:08,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 365 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-01-08 22:21:08,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2025-01-08 22:21:08,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 163. [2025-01-08 22:21:08,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.1790123456790123) internal successors, (191), 162 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:21:08,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 191 transitions. [2025-01-08 22:21:08,779 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 191 transitions. Word has length 79 [2025-01-08 22:21:08,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:21:08,779 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 191 transitions. [2025-01-08 22:21:08,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.962962962962963) internal successors, (160), 53 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:21:08,779 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 191 transitions. [2025-01-08 22:21:08,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-01-08 22:21:08,782 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:21:08,782 INFO L218 NwaCegarLoop]: trace histogram [46, 46, 23, 23, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2025-01-08 22:21:08,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-08 22:21:08,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-01-08 22:21:08,983 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:21:08,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:21:08,984 INFO L85 PathProgramCache]: Analyzing trace with hash 372204271, now seen corresponding path program 3 times [2025-01-08 22:21:08,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:21:08,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436470374] [2025-01-08 22:21:08,985 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-08 22:21:08,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:21:09,015 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 156 statements into 47 equivalence classes. [2025-01-08 22:21:09,032 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 24 of 156 statements. [2025-01-08 22:21:09,032 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-08 22:21:09,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:21:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2025-01-08 22:21:09,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:21:09,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436470374] [2025-01-08 22:21:09,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436470374] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:21:09,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758879888] [2025-01-08 22:21:09,220 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-08 22:21:09,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:21:09,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:21:09,226 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:21:09,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-08 22:21:09,299 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 156 statements into 47 equivalence classes. [2025-01-08 22:21:09,312 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 24 of 156 statements. [2025-01-08 22:21:09,313 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-08 22:21:09,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:21:09,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-08 22:21:09,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:21:09,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2025-01-08 22:21:09,845 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:21:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2025-01-08 22:21:11,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758879888] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:21:11,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:21:11,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2025-01-08 22:21:11,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120725714] [2025-01-08 22:21:11,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:21:11,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-08 22:21:11,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:21:11,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-08 22:21:11,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=224, Unknown=0, NotChecked=0, Total=342 [2025-01-08 22:21:11,419 INFO L87 Difference]: Start difference. First operand 163 states and 191 transitions. Second operand has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:21:11,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:21:11,608 INFO L93 Difference]: Finished difference Result 190 states and 227 transitions. [2025-01-08 22:21:11,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-08 22:21:11,609 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2025-01-08 22:21:11,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:21:11,610 INFO L225 Difference]: With dead ends: 190 [2025-01-08 22:21:11,611 INFO L226 Difference]: Without dead ends: 188 [2025-01-08 22:21:11,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=348, Invalid=644, Unknown=0, NotChecked=0, Total=992 [2025-01-08 22:21:11,611 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 85 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:21:11,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 40 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:21:11,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2025-01-08 22:21:11,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2025-01-08 22:21:11,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.1818181818181819) internal successors, (221), 187 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:21:11,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 221 transitions. [2025-01-08 22:21:11,648 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 221 transitions. Word has length 156 [2025-01-08 22:21:11,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:21:11,649 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 221 transitions. [2025-01-08 22:21:11,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:21:11,649 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 221 transitions. [2025-01-08 22:21:11,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2025-01-08 22:21:11,650 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:21:11,650 INFO L218 NwaCegarLoop]: trace histogram [46, 46, 23, 23, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1] [2025-01-08 22:21:11,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-08 22:21:11,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:21:11,851 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:21:11,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:21:11,851 INFO L85 PathProgramCache]: Analyzing trace with hash -595513334, now seen corresponding path program 4 times [2025-01-08 22:21:11,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:21:11,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237447974] [2025-01-08 22:21:11,851 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-08 22:21:11,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:21:11,885 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 181 statements into 2 equivalence classes. [2025-01-08 22:21:12,352 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 181 of 181 statements. [2025-01-08 22:21:12,353 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-08 22:21:12,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:21:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3284 backedges. 133 proven. 2458 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2025-01-08 22:21:14,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:21:14,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237447974] [2025-01-08 22:21:14,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237447974] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:21:14,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898266838] [2025-01-08 22:21:14,601 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-08 22:21:14,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:21:14,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:21:14,603 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:21:14,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-08 22:21:14,682 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 181 statements into 2 equivalence classes. [2025-01-08 22:21:18,438 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 181 of 181 statements. [2025-01-08 22:21:18,439 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-08 22:21:18,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:21:18,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 49 conjuncts are in the unsatisfiable core [2025-01-08 22:21:18,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:21:19,786 INFO L134 CoverageAnalysis]: Checked inductivity of 3284 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-01-08 22:21:19,786 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:21:21,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3284 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-01-08 22:21:21,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898266838] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:21:21,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:21:21,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 49, 49] total 131 [2025-01-08 22:21:21,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789868767] [2025-01-08 22:21:21,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:21:21,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 132 states [2025-01-08 22:21:21,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:21:21,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2025-01-08 22:21:21,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6278, Invalid=11014, Unknown=0, NotChecked=0, Total=17292 [2025-01-08 22:21:21,886 INFO L87 Difference]: Start difference. First operand 188 states and 221 transitions. Second operand has 132 states, 132 states have (on average 3.053030303030303) internal successors, (403), 131 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:21:30,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:21:30,131 INFO L93 Difference]: Finished difference Result 5972 states and 7207 transitions. [2025-01-08 22:21:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2025-01-08 22:21:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 132 states, 132 states have (on average 3.053030303030303) internal successors, (403), 131 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2025-01-08 22:21:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:21:30,146 INFO L225 Difference]: With dead ends: 5972 [2025-01-08 22:21:30,147 INFO L226 Difference]: Without dead ends: 5857 [2025-01-08 22:21:30,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14220 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=15206, Invalid=26206, Unknown=0, NotChecked=0, Total=41412 [2025-01-08 22:21:30,150 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 6858 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 894 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6858 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 1645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 894 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:21:30,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6858 Valid, 598 Invalid, 1645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [894 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-08 22:21:30,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5857 states. [2025-01-08 22:21:30,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5857 to 407. [2025-01-08 22:21:30,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.2044334975369457) internal successors, (489), 406 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:21:30,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 489 transitions. [2025-01-08 22:21:30,215 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 489 transitions. Word has length 181 [2025-01-08 22:21:30,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:21:30,215 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 489 transitions. [2025-01-08 22:21:30,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 132 states, 132 states have (on average 3.053030303030303) internal successors, (403), 131 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 22:21:30,215 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 489 transitions. [2025-01-08 22:21:30,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2025-01-08 22:21:30,218 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:21:30,218 INFO L218 NwaCegarLoop]: trace histogram [119, 119, 72, 47, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1] [2025-01-08 22:21:30,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-08 22:21:30,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-01-08 22:21:30,419 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:21:30,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:21:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2143570806, now seen corresponding path program 5 times [2025-01-08 22:21:30,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:21:30,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726053202] [2025-01-08 22:21:30,420 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-08 22:21:30,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:21:30,470 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 400 statements into 120 equivalence classes. [2025-01-08 22:21:48,268 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 120 check-sat command(s) and asserted 400 of 400 statements. [2025-01-08 22:21:48,269 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 120 check-sat command(s) [2025-01-08 22:21:48,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:22:00,475 INFO L134 CoverageAnalysis]: Checked inductivity of 21315 backedges. 7740 proven. 13442 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-01-08 22:22:00,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:22:00,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726053202] [2025-01-08 22:22:00,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726053202] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:22:00,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613752385] [2025-01-08 22:22:00,475 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-08 22:22:00,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:22:00,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:22:00,477 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:22:00,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-08 22:22:00,635 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 400 statements into 120 equivalence classes.