./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.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-multidimensional/init-non-constant-2-n-u.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 4fa401c700a21fa1f98a1481c8e8ba1555a45c0429555dc041a1c04ce1059991 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-08 22:29:01,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-08 22:29:01,096 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-08 22:29:01,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-08 22:29:01,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-08 22:29:01,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-08 22:29:01,125 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-08 22:29:01,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-08 22:29:01,125 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-08 22:29:01,125 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-08 22:29:01,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-08 22:29:01,126 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-08 22:29:01,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-08 22:29:01,126 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-08 22:29:01,127 INFO L153 SettingsManager]: * Use SBE=true [2025-01-08 22:29:01,127 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-08 22:29:01,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-08 22:29:01,127 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-08 22:29:01,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-08 22:29:01,127 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-08 22:29:01,127 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-08 22:29:01,128 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-08 22:29:01,128 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-08 22:29:01,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-08 22:29:01,128 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-08 22:29:01,128 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-08 22:29:01,128 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-08 22:29:01,128 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-08 22:29:01,128 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-08 22:29:01,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 22:29:01,129 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 22:29:01,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 22:29:01,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 22:29:01,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-08 22:29:01,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 22:29:01,129 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 22:29:01,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 22:29:01,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 22:29:01,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-08 22:29:01,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-08 22:29:01,129 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-08 22:29:01,129 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-08 22:29:01,129 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-08 22:29:01,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-08 22:29:01,130 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-08 22:29:01,130 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-08 22:29:01,130 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-08 22:29:01,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-08 22:29:01,130 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 -> 4fa401c700a21fa1f98a1481c8e8ba1555a45c0429555dc041a1c04ce1059991 [2025-01-08 22:29:01,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-08 22:29:01,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-08 22:29:01,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-08 22:29:01,359 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-08 22:29:01,359 INFO L274 PluginConnector]: CDTParser initialized [2025-01-08 22:29:01,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c [2025-01-08 22:29:02,552 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cd82b6ad7/cb06b00241e34d9e90eece6fd20a41d7/FLAG56ff5c8ab [2025-01-08 22:29:02,801 INFO L384 CDTParser]: Found 1 translation units. [2025-01-08 22:29:02,806 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c [2025-01-08 22:29:02,816 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cd82b6ad7/cb06b00241e34d9e90eece6fd20a41d7/FLAG56ff5c8ab [2025-01-08 22:29:02,841 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cd82b6ad7/cb06b00241e34d9e90eece6fd20a41d7 [2025-01-08 22:29:02,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-08 22:29:02,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-08 22:29:02,849 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-08 22:29:02,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-08 22:29:02,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-08 22:29:02,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 10:29:02" (1/1) ... [2025-01-08 22:29:02,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c477f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:02, skipping insertion in model container [2025-01-08 22:29:02,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 10:29:02" (1/1) ... [2025-01-08 22:29:02,873 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-08 22:29:02,963 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-multidimensional/init-non-constant-2-n-u.c[421,434] [2025-01-08 22:29:02,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 22:29:02,984 INFO L200 MainTranslator]: Completed pre-run [2025-01-08 22:29:02,991 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-multidimensional/init-non-constant-2-n-u.c[421,434] [2025-01-08 22:29:02,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 22:29:03,009 INFO L204 MainTranslator]: Completed translation [2025-01-08 22:29:03,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03 WrapperNode [2025-01-08 22:29:03,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-08 22:29:03,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-08 22:29:03,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-08 22:29:03,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-08 22:29:03,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,031 INFO L138 Inliner]: procedures = 16, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2025-01-08 22:29:03,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-08 22:29:03,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-08 22:29:03,033 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-08 22:29:03,033 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-08 22:29:03,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,055 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-01-08 22:29:03,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,058 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,059 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,065 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-08 22:29:03,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-08 22:29:03,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-08 22:29:03,067 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-08 22:29:03,067 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (1/1) ... [2025-01-08 22:29:03,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 22:29:03,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:29:03,091 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 22:29:03,094 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 22:29:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-08 22:29:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-08 22:29:03,113 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-08 22:29:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-08 22:29:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-08 22:29:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-08 22:29:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-08 22:29:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-08 22:29:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-08 22:29:03,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-08 22:29:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-08 22:29:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-08 22:29:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-08 22:29:03,164 INFO L234 CfgBuilder]: Building ICFG [2025-01-08 22:29:03,166 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-08 22:29:03,240 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2025-01-08 22:29:03,240 INFO L283 CfgBuilder]: Performing block encoding [2025-01-08 22:29:03,246 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-08 22:29:03,249 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-08 22:29:03,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 10:29:03 BoogieIcfgContainer [2025-01-08 22:29:03,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-08 22:29:03,251 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-08 22:29:03,251 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-08 22:29:03,254 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-08 22:29:03,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.01 10:29:02" (1/3) ... [2025-01-08 22:29:03,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4374c6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 10:29:03, skipping insertion in model container [2025-01-08 22:29:03,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:29:03" (2/3) ... [2025-01-08 22:29:03,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4374c6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 10:29:03, skipping insertion in model container [2025-01-08 22:29:03,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 10:29:03" (3/3) ... [2025-01-08 22:29:03,256 INFO L128 eAbstractionObserver]: Analyzing ICFG init-non-constant-2-n-u.c [2025-01-08 22:29:03,265 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-08 22:29:03,266 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG init-non-constant-2-n-u.c that has 2 procedures, 19 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-01-08 22:29:03,306 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-08 22:29:03,313 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;@69f075ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-08 22:29:03,314 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-08 22:29:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-08 22:29:03,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-01-08 22:29:03,320 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:29:03,320 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:29:03,320 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:29:03,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:29:03,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2102928911, now seen corresponding path program 1 times [2025-01-08 22:29:03,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:29:03,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594568359] [2025-01-08 22:29:03,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:29:03,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:29:03,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-08 22:29:03,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-08 22:29:03,396 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:29:03,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:03,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:29:03,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594568359] [2025-01-08 22:29:03,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594568359] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 22:29:03,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 22:29:03,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-08 22:29:03,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427016777] [2025-01-08 22:29:03,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 22:29:03,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 22:29:03,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:29:03,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 22:29:03,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 22:29:03,558 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:03,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:29:03,618 INFO L93 Difference]: Finished difference Result 44 states and 63 transitions. [2025-01-08 22:29:03,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 22:29:03,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2025-01-08 22:29:03,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:29:03,623 INFO L225 Difference]: With dead ends: 44 [2025-01-08 22:29:03,623 INFO L226 Difference]: Without dead ends: 24 [2025-01-08 22:29:03,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 22:29:03,628 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:29:03,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 37 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-08 22:29:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-01-08 22:29:03,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2025-01-08 22:29:03,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-08 22:29:03,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2025-01-08 22:29:03,652 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 17 [2025-01-08 22:29:03,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:29:03,653 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2025-01-08 22:29:03,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:03,653 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2025-01-08 22:29:03,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-08 22:29:03,654 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:29:03,654 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:29:03,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-08 22:29:03,655 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:29:03,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:29:03,655 INFO L85 PathProgramCache]: Analyzing trace with hash -704383351, now seen corresponding path program 1 times [2025-01-08 22:29:03,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:29:03,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057784923] [2025-01-08 22:29:03,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:29:03,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:29:03,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-08 22:29:03,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-08 22:29:03,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:29:03,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:03,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:29:03,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057784923] [2025-01-08 22:29:03,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057784923] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 22:29:03,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 22:29:03,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-08 22:29:03,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952356522] [2025-01-08 22:29:03,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 22:29:03,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-08 22:29:03,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:29:03,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-08 22:29:03,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-08 22:29:03,799 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:03,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:29:03,840 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2025-01-08 22:29:03,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-08 22:29:03,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2025-01-08 22:29:03,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:29:03,841 INFO L225 Difference]: With dead ends: 35 [2025-01-08 22:29:03,841 INFO L226 Difference]: Without dead ends: 23 [2025-01-08 22:29:03,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-08 22:29:03,842 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:29:03,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 46 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-08 22:29:03,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-01-08 22:29:03,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2025-01-08 22:29:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-08 22:29:03,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2025-01-08 22:29:03,846 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 19 [2025-01-08 22:29:03,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:29:03,847 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2025-01-08 22:29:03,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:03,847 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2025-01-08 22:29:03,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-01-08 22:29:03,849 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:29:03,849 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:29:03,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-08 22:29:03,849 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:29:03,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:29:03,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2097838067, now seen corresponding path program 1 times [2025-01-08 22:29:03,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:29:03,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585267166] [2025-01-08 22:29:03,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:29:03,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:29:03,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-08 22:29:03,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-08 22:29:03,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:29:03,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-08 22:29:03,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797558663] [2025-01-08 22:29:03,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:29:03,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:29:03,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:29:03,890 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 22:29:03,894 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 22:29:03,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-08 22:29:03,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-08 22:29:03,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:29:03,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:03,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-01-08 22:29:03,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:29:04,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-08 22:29:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:04,209 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:29:04,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2025-01-08 22:29:04,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2025-01-08 22:29:04,696 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:04,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:29:04,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585267166] [2025-01-08 22:29:04,697 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-08 22:29:04,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797558663] [2025-01-08 22:29:04,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797558663] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:29:04,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-08 22:29:04,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 17 [2025-01-08 22:29:04,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552751546] [2025-01-08 22:29:04,698 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-08 22:29:04,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-08 22:29:04,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:29:04,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-08 22:29:04,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2025-01-08 22:29:04,701 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 17 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-08 22:29:05,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:29:05,114 INFO L93 Difference]: Finished difference Result 67 states and 83 transitions. [2025-01-08 22:29:05,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-08 22:29:05,114 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 20 [2025-01-08 22:29:05,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:29:05,115 INFO L225 Difference]: With dead ends: 67 [2025-01-08 22:29:05,115 INFO L226 Difference]: Without dead ends: 60 [2025-01-08 22:29:05,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=527, Unknown=0, NotChecked=0, Total=756 [2025-01-08 22:29:05,116 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 180 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-08 22:29:05,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 100 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-08 22:29:05,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2025-01-08 22:29:05,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 32. [2025-01-08 22:29:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-08 22:29:05,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2025-01-08 22:29:05,123 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 20 [2025-01-08 22:29:05,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:29:05,123 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2025-01-08 22:29:05,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-08 22:29:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2025-01-08 22:29:05,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-01-08 22:29:05,124 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:29:05,124 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:29:05,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-08 22:29:05,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:29:05,328 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:29:05,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:29:05,329 INFO L85 PathProgramCache]: Analyzing trace with hash 760359823, now seen corresponding path program 2 times [2025-01-08 22:29:05,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:29:05,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621409477] [2025-01-08 22:29:05,329 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-08 22:29:05,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:29:05,349 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-01-08 22:29:05,369 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-01-08 22:29:05,371 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-08 22:29:05,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-08 22:29:05,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2107242797] [2025-01-08 22:29:05,373 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-08 22:29:05,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:29:05,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:29:05,376 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 22:29:05,377 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 22:29:05,412 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-01-08 22:29:05,426 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-01-08 22:29:05,426 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-08 22:29:05,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:05,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-08 22:29:05,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:29:05,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-08 22:29:05,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:29:05,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 11 [2025-01-08 22:29:05,588 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:05,588 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:29:26,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2025-01-08 22:29:26,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 77 [2025-01-08 22:29:27,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:29:27,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621409477] [2025-01-08 22:29:27,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-08 22:29:27,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107242797] [2025-01-08 22:29:27,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107242797] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:29:27,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-08 22:29:27,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-01-08 22:29:27,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591275317] [2025-01-08 22:29:27,282 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-08 22:29:27,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-08 22:29:27,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:29:27,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-08 22:29:27,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=234, Unknown=6, NotChecked=0, Total=306 [2025-01-08 22:29:27,284 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:27,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:29:27,368 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2025-01-08 22:29:27,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-08 22:29:27,369 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2025-01-08 22:29:27,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:29:27,369 INFO L225 Difference]: With dead ends: 46 [2025-01-08 22:29:27,370 INFO L226 Difference]: Without dead ends: 44 [2025-01-08 22:29:27,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=80, Invalid=256, Unknown=6, NotChecked=0, Total=342 [2025-01-08 22:29:27,371 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 37 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:29:27,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 56 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:29:27,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2025-01-08 22:29:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 30. [2025-01-08 22:29:27,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-08 22:29:27,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2025-01-08 22:29:27,382 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 23 [2025-01-08 22:29:27,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:29:27,383 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2025-01-08 22:29:27,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2025-01-08 22:29:27,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-01-08 22:29:27,384 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:29:27,384 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:29:27,392 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 22:29:27,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:29:27,588 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:29:27,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:29:27,590 INFO L85 PathProgramCache]: Analyzing trace with hash -113645360, now seen corresponding path program 1 times [2025-01-08 22:29:27,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:29:27,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724199025] [2025-01-08 22:29:27,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:29:27,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:29:27,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-08 22:29:27,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-08 22:29:27,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:29:27,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-08 22:29:27,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [855405680] [2025-01-08 22:29:27,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:29:27,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:29:27,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:29:27,628 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 22:29:27,629 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 22:29:27,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-08 22:29:27,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-08 22:29:27,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:29:27,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:27,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-01-08 22:29:27,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:29:27,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2025-01-08 22:29:27,751 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:27,752 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:29:27,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2025-01-08 22:29:27,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 75 [2025-01-08 22:29:27,959 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:27,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:29:27,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724199025] [2025-01-08 22:29:27,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-08 22:29:27,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855405680] [2025-01-08 22:29:27,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855405680] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:29:27,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-08 22:29:27,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2025-01-08 22:29:27,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817136402] [2025-01-08 22:29:27,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-08 22:29:27,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-08 22:29:27,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:29:27,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-08 22:29:27,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2025-01-08 22:29:27,961 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:28,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:29:28,100 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2025-01-08 22:29:28,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-08 22:29:28,100 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2025-01-08 22:29:28,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:29:28,101 INFO L225 Difference]: With dead ends: 68 [2025-01-08 22:29:28,101 INFO L226 Difference]: Without dead ends: 66 [2025-01-08 22:29:28,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2025-01-08 22:29:28,101 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 38 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:29:28,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 152 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:29:28,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2025-01-08 22:29:28,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 37. [2025-01-08 22:29:28,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-08 22:29:28,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2025-01-08 22:29:28,109 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 24 [2025-01-08 22:29:28,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:29:28,109 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2025-01-08 22:29:28,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2025-01-08 22:29:28,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-01-08 22:29:28,110 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:29:28,110 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:29:28,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-08 22:29:28,311 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 22:29:28,311 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:29:28,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:29:28,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1827215263, now seen corresponding path program 1 times [2025-01-08 22:29:28,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:29:28,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293824023] [2025-01-08 22:29:28,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:29:28,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:29:28,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-08 22:29:28,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-08 22:29:28,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:29:28,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:28,403 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:28,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:29:28,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293824023] [2025-01-08 22:29:28,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293824023] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:29:28,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685144983] [2025-01-08 22:29:28,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:29:28,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:29:28,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:29:28,405 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 22:29:28,407 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 22:29:28,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-08 22:29:28,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-08 22:29:28,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:29:28,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:28,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-08 22:29:28,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:29:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:28,515 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:29:28,563 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:28,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685144983] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:29:28,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:29:28,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2025-01-08 22:29:28,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163507106] [2025-01-08 22:29:28,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:29:28,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-08 22:29:28,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:29:28,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-08 22:29:28,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-01-08 22:29:28,565 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:28,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:29:28,652 INFO L93 Difference]: Finished difference Result 74 states and 91 transitions. [2025-01-08 22:29:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-08 22:29:28,653 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2025-01-08 22:29:28,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:29:28,654 INFO L225 Difference]: With dead ends: 74 [2025-01-08 22:29:28,655 INFO L226 Difference]: Without dead ends: 61 [2025-01-08 22:29:28,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2025-01-08 22:29:28,656 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 30 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:29:28,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 136 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:29:28,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2025-01-08 22:29:28,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2025-01-08 22:29:28,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 49 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-08 22:29:28,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2025-01-08 22:29:28,666 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 26 [2025-01-08 22:29:28,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:29:28,666 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2025-01-08 22:29:28,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2025-01-08 22:29:28,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-01-08 22:29:28,667 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:29:28,667 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:29:28,673 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 22:29:28,872 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 22:29:28,872 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:29:28,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:29:28,873 INFO L85 PathProgramCache]: Analyzing trace with hash 226788170, now seen corresponding path program 2 times [2025-01-08 22:29:28,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:29:28,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233160186] [2025-01-08 22:29:28,873 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-08 22:29:28,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:29:28,879 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-01-08 22:29:28,893 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-01-08 22:29:28,893 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-08 22:29:28,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:28,975 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-08 22:29:28,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:29:28,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233160186] [2025-01-08 22:29:28,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233160186] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:29:28,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854841442] [2025-01-08 22:29:28,976 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-08 22:29:28,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:29:28,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:29:28,982 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 22:29:28,982 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 22:29:29,010 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-01-08 22:29:29,021 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-01-08 22:29:29,021 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-08 22:29:29,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:29,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-08 22:29:29,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:29:29,055 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-08 22:29:29,055 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:29:29,084 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-08 22:29:29,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854841442] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:29:29,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:29:29,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2025-01-08 22:29:29,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84371312] [2025-01-08 22:29:29,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:29:29,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-08 22:29:29,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:29:29,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-08 22:29:29,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-01-08 22:29:29,086 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:29,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:29:29,132 INFO L93 Difference]: Finished difference Result 78 states and 93 transitions. [2025-01-08 22:29:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-08 22:29:29,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2025-01-08 22:29:29,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:29:29,134 INFO L225 Difference]: With dead ends: 78 [2025-01-08 22:29:29,134 INFO L226 Difference]: Without dead ends: 61 [2025-01-08 22:29:29,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2025-01-08 22:29:29,134 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:29:29,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 103 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-08 22:29:29,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2025-01-08 22:29:29,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2025-01-08 22:29:29,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-08 22:29:29,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2025-01-08 22:29:29,161 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 26 [2025-01-08 22:29:29,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:29:29,161 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2025-01-08 22:29:29,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:29,162 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2025-01-08 22:29:29,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-01-08 22:29:29,162 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:29:29,162 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:29:29,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-08 22:29:29,362 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 22:29:29,363 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:29:29,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:29:29,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1169870231, now seen corresponding path program 3 times [2025-01-08 22:29:29,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:29:29,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735427325] [2025-01-08 22:29:29,363 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-08 22:29:29,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:29:29,377 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 27 statements into 3 equivalence classes. [2025-01-08 22:29:29,393 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 27 of 27 statements. [2025-01-08 22:29:29,394 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-08 22:29:29,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:29,495 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:29,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:29:29,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735427325] [2025-01-08 22:29:29,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735427325] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:29:29,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791139355] [2025-01-08 22:29:29,495 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-08 22:29:29,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:29:29,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:29:29,498 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 22:29:29,503 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 22:29:29,534 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 27 statements into 3 equivalence classes. [2025-01-08 22:29:29,551 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 27 of 27 statements. [2025-01-08 22:29:29,552 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-08 22:29:29,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:29,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-08 22:29:29,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:29:29,604 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:29,604 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:29:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:29,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791139355] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:29:29,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:29:29,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2025-01-08 22:29:29,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214453268] [2025-01-08 22:29:29,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:29:29,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-08 22:29:29,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:29:29,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-08 22:29:29,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2025-01-08 22:29:29,654 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:29,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:29:29,742 INFO L93 Difference]: Finished difference Result 109 states and 130 transitions. [2025-01-08 22:29:29,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-08 22:29:29,745 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2025-01-08 22:29:29,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:29:29,745 INFO L225 Difference]: With dead ends: 109 [2025-01-08 22:29:29,745 INFO L226 Difference]: Without dead ends: 92 [2025-01-08 22:29:29,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2025-01-08 22:29:29,746 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 36 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:29:29,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 121 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:29:29,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2025-01-08 22:29:29,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 80. [2025-01-08 22:29:29,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 76 states have (on average 1.25) internal successors, (95), 76 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-08 22:29:29,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 99 transitions. [2025-01-08 22:29:29,767 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 99 transitions. Word has length 27 [2025-01-08 22:29:29,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:29:29,767 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 99 transitions. [2025-01-08 22:29:29,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:29,768 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 99 transitions. [2025-01-08 22:29:29,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-01-08 22:29:29,769 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:29:29,769 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:29:29,795 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 22:29:29,971 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 22:29:29,971 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:29:29,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:29:29,972 INFO L85 PathProgramCache]: Analyzing trace with hash -611276333, now seen corresponding path program 4 times [2025-01-08 22:29:29,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:29:29,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117221178] [2025-01-08 22:29:29,972 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-08 22:29:29,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:29:29,979 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 28 statements into 2 equivalence classes. [2025-01-08 22:29:30,014 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 28 of 28 statements. [2025-01-08 22:29:30,014 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-08 22:29:30,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-08 22:29:30,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081875379] [2025-01-08 22:29:30,017 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-08 22:29:30,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:29:30,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:29:30,019 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 22:29:30,023 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 22:29:30,053 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 28 statements into 2 equivalence classes. [2025-01-08 22:29:30,069 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 28 of 28 statements. [2025-01-08 22:29:30,069 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-08 22:29:30,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:30,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-01-08 22:29:30,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:29:30,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2025-01-08 22:29:30,204 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:30,204 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:29:30,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2025-01-08 22:29:30,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2025-01-08 22:29:30,377 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:30,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:29:30,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117221178] [2025-01-08 22:29:30,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-08 22:29:30,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081875379] [2025-01-08 22:29:30,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081875379] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:29:30,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-08 22:29:30,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2025-01-08 22:29:30,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763492207] [2025-01-08 22:29:30,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-08 22:29:30,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-08 22:29:30,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:29:30,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-08 22:29:30,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2025-01-08 22:29:30,378 INFO L87 Difference]: Start difference. First operand 80 states and 99 transitions. Second operand has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:30,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:29:30,642 INFO L93 Difference]: Finished difference Result 139 states and 169 transitions. [2025-01-08 22:29:30,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-08 22:29:30,643 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2025-01-08 22:29:30,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:29:30,644 INFO L225 Difference]: With dead ends: 139 [2025-01-08 22:29:30,644 INFO L226 Difference]: Without dead ends: 137 [2025-01-08 22:29:30,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2025-01-08 22:29:30,644 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 51 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-08 22:29:30,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 231 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-08 22:29:30,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2025-01-08 22:29:30,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 83. [2025-01-08 22:29:30,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.2531645569620253) internal successors, (99), 79 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-08 22:29:30,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 103 transitions. [2025-01-08 22:29:30,678 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 103 transitions. Word has length 28 [2025-01-08 22:29:30,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:29:30,678 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 103 transitions. [2025-01-08 22:29:30,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-08 22:29:30,678 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 103 transitions. [2025-01-08 22:29:30,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-01-08 22:29:30,680 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:29:30,680 INFO L218 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:29:30,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-08 22:29:30,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:29:30,881 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:29:30,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:29:30,882 INFO L85 PathProgramCache]: Analyzing trace with hash 844228054, now seen corresponding path program 5 times [2025-01-08 22:29:30,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:29:30,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690050105] [2025-01-08 22:29:30,882 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-08 22:29:30,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:29:30,889 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 28 statements into 5 equivalence classes. [2025-01-08 22:29:30,914 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 28 of 28 statements. [2025-01-08 22:29:30,917 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-01-08 22:29:30,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-08 22:29:30,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [775532421] [2025-01-08 22:29:30,918 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-08 22:29:30,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:29:30,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:29:30,921 INFO L229 MonitoredProcess]: Starting monitored process 9 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 22:29:30,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-08 22:29:30,953 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 28 statements into 5 equivalence classes. [2025-01-08 22:29:30,980 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 28 of 28 statements. [2025-01-08 22:29:30,980 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-01-08 22:29:30,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:29:30,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-01-08 22:29:30,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:29:31,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-08 22:29:31,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2025-01-08 22:29:31,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:29:31,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:29:31,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-08 22:29:31,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 25 [2025-01-08 22:29:31,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-08 22:29:31,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 28 [2025-01-08 22:29:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:29:31,284 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:29:52,078 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_126 Int) (|v_ULTIMATE.start_main_~j~0#1_117| Int)) (or (= (mod (+ |c_ULTIMATE.start_main_~C~0#1| 1) 4294967296) (mod (select (let ((.cse0 (* (+ |c_ULTIMATE.start_main_~i~0#1| 1) (* |c_ULTIMATE.start_main_~n~0#1| 4)))) (store (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~#A~0#1.base|) (+ |c_ULTIMATE.start_main_~#A~0#1.offset| .cse0) (+ |c_ULTIMATE.start_main_~C~0#1| |c_ULTIMATE.start_main_~i~0#1| 1)) (+ |c_ULTIMATE.start_main_~#A~0#1.offset| (* |v_ULTIMATE.start_main_~j~0#1_117| 4) .cse0) v_ArrVal_126)) (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4)) 4294967296)) (< |v_ULTIMATE.start_main_~j~0#1_117| 1))) is different from false [2025-01-08 22:29:52,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 126 [2025-01-08 22:29:52,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2099 treesize of output 2059 [2025-01-08 22:29:53,005 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 5 not checked. [2025-01-08 22:29:53,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:29:53,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690050105] [2025-01-08 22:29:53,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-08 22:29:53,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775532421] [2025-01-08 22:29:53,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775532421] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:29:53,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-08 22:29:53,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2025-01-08 22:29:53,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871114108] [2025-01-08 22:29:53,006 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-08 22:29:53,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-08 22:29:53,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:29:53,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-08 22:29:53,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=450, Unknown=4, NotChecked=44, Total=600 [2025-01-08 22:29:53,009 INFO L87 Difference]: Start difference. First operand 83 states and 103 transitions. Second operand has 25 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-08 22:30:03,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2025-01-08 22:30:38,531 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (+ |c_ULTIMATE.start_main_~C~0#1| 1) 4294967296)) (.cse1 (select |c_#memory_int#1| |c_ULTIMATE.start_main_~#A~0#1.base|)) (.cse2 (* (* |c_ULTIMATE.start_main_~n~0#1| 4) |c_ULTIMATE.start_main_~i~0#1|)) (.cse3 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4))) (and (forall ((v_ArrVal_126 Int) (|v_ULTIMATE.start_main_~j~0#1_117| Int)) (or (= .cse0 (mod (select (store (store .cse1 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| .cse2) (+ |c_ULTIMATE.start_main_~C~0#1| |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~#A~0#1.offset| (* |v_ULTIMATE.start_main_~j~0#1_117| 4) .cse2) v_ArrVal_126) .cse3) 4294967296)) (< |v_ULTIMATE.start_main_~j~0#1_117| 1))) (= .cse0 (mod (select .cse1 .cse3) 4294967296)) (forall ((v_ArrVal_126 Int) (|v_ULTIMATE.start_main_~j~0#1_117| Int)) (or (= .cse0 (mod (select (store (store .cse1 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| .cse2 (* |c_ULTIMATE.start_main_~j~0#1| 4)) (+ |c_ULTIMATE.start_main_~j~0#1| |c_ULTIMATE.start_main_~C~0#1| |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~#A~0#1.offset| (* |v_ULTIMATE.start_main_~j~0#1_117| 4) .cse2) v_ArrVal_126) .cse3) 4294967296)) (< |v_ULTIMATE.start_main_~j~0#1_117| (+ |c_ULTIMATE.start_main_~j~0#1| 1)))))) is different from false [2025-01-08 22:30:42,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2025-01-08 22:30:46,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1]