./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash affe6b2992f7714f4bd95d6011e70945dc7608cfcd3847461bdcd80eeea00f05 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:07:04,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:07:04,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:07:04,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:07:04,944 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:07:04,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:07:04,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:07:04,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:07:04,961 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:07:04,961 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:07:04,961 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:07:04,961 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:07:04,962 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:07:04,962 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:07:04,962 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:07:04,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:07:04,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:07:04,962 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:07:04,962 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:07:04,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:07:04,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:07:04,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:07:04,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:07:04,962 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:07:04,963 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:07:04,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:07:04,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:07:04,963 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 -> affe6b2992f7714f4bd95d6011e70945dc7608cfcd3847461bdcd80eeea00f05 [2025-02-07 21:07:05,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:07:05,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:07:05,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:07:05,211 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:07:05,211 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:07:05,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i [2025-02-07 21:07:06,264 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c66ea1e76/de697b9389744a0aaceb03e99557beee/FLAG62a6ec218 [2025-02-07 21:07:06,450 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:07:06,451 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i [2025-02-07 21:07:06,459 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c66ea1e76/de697b9389744a0aaceb03e99557beee/FLAG62a6ec218 [2025-02-07 21:07:06,819 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c66ea1e76/de697b9389744a0aaceb03e99557beee [2025-02-07 21:07:06,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:07:06,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:07:06,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:07:06,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:07:06,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:07:06,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:06,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6afb79a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06, skipping insertion in model container [2025-02-07 21:07:06,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:06,837 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:07:06,929 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/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i[1692,1705] [2025-02-07 21:07:06,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:07:06,949 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:07:06,956 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/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i[1692,1705] [2025-02-07 21:07:06,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:07:06,974 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:07:06,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06 WrapperNode [2025-02-07 21:07:06,974 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:07:06,975 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:07:06,975 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:07:06,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:07:06,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:06,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:06,992 INFO L138 Inliner]: procedures = 17, calls = 32, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2025-02-07 21:07:06,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:07:06,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:07:06,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:07:06,993 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:07:06,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:06,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:07,000 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:07,013 INFO L175 MemorySlicer]: Split 18 memory accesses to 3 slices as follows [2, 13, 3]. 72 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 5 writes are split as follows [0, 4, 1]. [2025-02-07 21:07:07,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:07,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:07,016 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:07,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:07,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:07,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:07,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:07:07,021 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:07:07,021 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:07:07,021 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:07:07,022 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (1/1) ... [2025-02-07 21:07:07,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:07:07,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:07:07,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 21:07:07,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_32_to_33_0 [2025-02-07 21:07:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_32_to_33_0 [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:07:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-07 21:07:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 21:07:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_36_to_40_0 [2025-02-07 21:07:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_36_to_40_0 [2025-02-07 21:07:07,105 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:07:07,106 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:07:07,211 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-02-07 21:07:07,211 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:07:07,216 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:07:07,217 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:07:07,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:07:07 BoogieIcfgContainer [2025-02-07 21:07:07,217 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:07:07,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:07:07,219 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:07:07,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:07:07,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:07:06" (1/3) ... [2025-02-07 21:07:07,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a7fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:07:07, skipping insertion in model container [2025-02-07 21:07:07,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:07:06" (2/3) ... [2025-02-07 21:07:07,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a7fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:07:07, skipping insertion in model container [2025-02-07 21:07:07,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:07:07" (3/3) ... [2025-02-07 21:07:07,223 INFO L128 eAbstractionObserver]: Analyzing ICFG recursified_simple_array_index_value_1-1.i [2025-02-07 21:07:07,231 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:07:07,232 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_simple_array_index_value_1-1.i that has 4 procedures, 29 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-07 21:07:07,263 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:07:07,271 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;@5a3b295d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:07:07,272 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 21:07:07,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 21:07:07,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-07 21:07:07,280 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:07:07,280 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:07:07,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:07:07,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:07:07,284 INFO L85 PathProgramCache]: Analyzing trace with hash 711827378, now seen corresponding path program 1 times [2025-02-07 21:07:07,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:07:07,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279600184] [2025-02-07 21:07:07,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:07:07,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:07:07,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-07 21:07:07,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-07 21:07:07,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:07:07,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:07,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 21:07:07,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:07:07,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279600184] [2025-02-07 21:07:07,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279600184] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:07:07,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:07:07,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-07 21:07:07,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034070772] [2025-02-07 21:07:07,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:07:07,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-07 21:07:07,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:07:07,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-07 21:07:07,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-07 21:07:07,757 INFO L87 Difference]: Start difference. First operand has 29 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-07 21:07:07,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:07:07,887 INFO L93 Difference]: Finished difference Result 56 states and 72 transitions. [2025-02-07 21:07:07,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-07 21:07:07,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2025-02-07 21:07:07,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:07:07,893 INFO L225 Difference]: With dead ends: 56 [2025-02-07 21:07:07,893 INFO L226 Difference]: Without dead ends: 26 [2025-02-07 21:07:07,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-07 21:07:07,897 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-07 21:07:07,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 39 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-07 21:07:07,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-02-07 21:07:07,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-02-07 21:07:07,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2025-02-07 21:07:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2025-02-07 21:07:07,922 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 15 [2025-02-07 21:07:07,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:07:07,922 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2025-02-07 21:07:07,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-07 21:07:07,923 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2025-02-07 21:07:07,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-07 21:07:07,923 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:07:07,924 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:07:07,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 21:07:07,924 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:07:07,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:07:07,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2045949515, now seen corresponding path program 1 times [2025-02-07 21:07:07,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:07:07,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677773062] [2025-02-07 21:07:07,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:07:07,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:07:07,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-07 21:07:07,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-07 21:07:07,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:07:07,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:08,254 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-07 21:07:08,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:07:08,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677773062] [2025-02-07 21:07:08,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677773062] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 21:07:08,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639117678] [2025-02-07 21:07:08,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:07:08,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 21:07:08,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:07:08,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-07 21:07:08,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-07 21:07:08,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-07 21:07:08,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-07 21:07:08,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:07:08,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:08,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-02-07 21:07:08,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:07:08,339 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 [2025-02-07 21:07:08,462 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-07 21:07:08,462 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-07 21:07:08,802 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 21:07:08,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639117678] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-07 21:07:08,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-07 21:07:08,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 19 [2025-02-07 21:07:08,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155163364] [2025-02-07 21:07:08,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-07 21:07:08,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-07 21:07:08,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:07:08,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-07 21:07:08,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2025-02-07 21:07:08,804 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 20 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 states have internal predecessors, (25), 6 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-07 21:07:09,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:07:09,021 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2025-02-07 21:07:09,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-07 21:07:09,021 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 states have internal predecessors, (25), 6 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 20 [2025-02-07 21:07:09,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:07:09,022 INFO L225 Difference]: With dead ends: 45 [2025-02-07 21:07:09,022 INFO L226 Difference]: Without dead ends: 28 [2025-02-07 21:07:09,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2025-02-07 21:07:09,022 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-07 21:07:09,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 64 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-07 21:07:09,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-02-07 21:07:09,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2025-02-07 21:07:09,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2025-02-07 21:07:09,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2025-02-07 21:07:09,028 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 20 [2025-02-07 21:07:09,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:07:09,028 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2025-02-07 21:07:09,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 states have internal predecessors, (25), 6 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-07 21:07:09,028 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2025-02-07 21:07:09,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-07 21:07:09,028 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:07:09,028 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:07:09,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-07 21:07:09,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 21:07:09,230 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:07:09,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:07:09,231 INFO L85 PathProgramCache]: Analyzing trace with hash 475008926, now seen corresponding path program 2 times [2025-02-07 21:07:09,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:07:09,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461244733] [2025-02-07 21:07:09,231 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-07 21:07:09,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:07:09,243 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-02-07 21:07:09,253 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-02-07 21:07:09,254 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-07 21:07:09,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:09,672 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-07 21:07:09,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:07:09,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461244733] [2025-02-07 21:07:09,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461244733] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 21:07:09,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883442484] [2025-02-07 21:07:09,673 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-07 21:07:09,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 21:07:09,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:07:09,675 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) [2025-02-07 21:07:09,676 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 [2025-02-07 21:07:09,711 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-02-07 21:07:09,734 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-02-07 21:07:09,735 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-07 21:07:09,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:09,739 WARN L254 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 96 conjuncts are in the unsatisfiable core [2025-02-07 21:07:09,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:07:09,750 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 [2025-02-07 21:07:09,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 70 [2025-02-07 21:07:09,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 24 treesize of output 23 [2025-02-07 21:07:09,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 25 treesize of output 24 [2025-02-07 21:07:10,105 INFO L349 Elim1Store]: treesize reduction 71, result has 19.3 percent of original size [2025-02-07 21:07:10,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 108 treesize of output 75 [2025-02-07 21:07:10,189 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 7 treesize of output 3 [2025-02-07 21:07:10,214 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 [2025-02-07 21:07:10,404 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 21:07:10,404 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-07 21:07:11,140 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:11,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 21:07:11,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 108 treesize of output 128 [2025-02-07 21:07:11,193 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:11,212 INFO L349 Elim1Store]: treesize reduction 5, result has 83.9 percent of original size [2025-02-07 21:07:11,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 91 [2025-02-07 21:07:11,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 21:07:11,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 26 [2025-02-07 21:07:11,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883442484] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 21:07:11,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-07 21:07:11,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 19] total 28 [2025-02-07 21:07:11,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258021895] [2025-02-07 21:07:11,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-07 21:07:11,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-02-07 21:07:11,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:07:11,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-02-07 21:07:11,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1293, Unknown=0, NotChecked=0, Total=1406 [2025-02-07 21:07:11,546 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 29 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 23 states have internal predecessors, (33), 9 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 21:07:12,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:07:12,339 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2025-02-07 21:07:12,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-07 21:07:12,339 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 23 states have internal predecessors, (33), 9 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 25 [2025-02-07 21:07:12,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:07:12,340 INFO L225 Difference]: With dead ends: 54 [2025-02-07 21:07:12,340 INFO L226 Difference]: Without dead ends: 35 [2025-02-07 21:07:12,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=208, Invalid=2048, Unknown=0, NotChecked=0, Total=2256 [2025-02-07 21:07:12,342 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 50 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-07 21:07:12,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 90 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-07 21:07:12,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-02-07 21:07:12,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2025-02-07 21:07:12,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2025-02-07 21:07:12,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2025-02-07 21:07:12,352 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 25 [2025-02-07 21:07:12,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:07:12,352 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2025-02-07 21:07:12,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 23 states have internal predecessors, (33), 9 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 21:07:12,352 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2025-02-07 21:07:12,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-02-07 21:07:12,353 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:07:12,353 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:07:12,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-07 21:07:12,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 21:07:12,554 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:07:12,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:07:12,555 INFO L85 PathProgramCache]: Analyzing trace with hash -920197257, now seen corresponding path program 3 times [2025-02-07 21:07:12,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:07:12,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339522552] [2025-02-07 21:07:12,555 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-07 21:07:12,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:07:12,565 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 30 statements into 4 equivalence classes. [2025-02-07 21:07:12,607 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 30 of 30 statements. [2025-02-07 21:07:12,609 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-02-07 21:07:12,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:13,073 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-07 21:07:13,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:07:13,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339522552] [2025-02-07 21:07:13,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339522552] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 21:07:13,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317444220] [2025-02-07 21:07:13,074 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-07 21:07:13,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 21:07:13,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:07:13,076 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) [2025-02-07 21:07:13,078 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 [2025-02-07 21:07:13,114 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 30 statements into 4 equivalence classes. [2025-02-07 21:07:13,158 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 30 of 30 statements. [2025-02-07 21:07:13,158 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-02-07 21:07:13,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:13,167 WARN L254 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 140 conjuncts are in the unsatisfiable core [2025-02-07 21:07:13,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:07:13,179 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 10 treesize of output 8 [2025-02-07 21:07:13,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2025-02-07 21:07:13,246 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 27 treesize of output 23 [2025-02-07 21:07:13,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-07 21:07:13,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-07 21:07:13,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-07 21:07:13,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 27 [2025-02-07 21:07:13,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2025-02-07 21:07:13,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2025-02-07 21:07:14,032 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-07 21:07:14,033 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-07 21:07:15,840 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:15,841 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:15,842 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:15,857 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 21:07:15,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 142 treesize of output 172 [2025-02-07 21:07:15,881 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:15,881 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:15,883 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:15,884 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:15,889 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:15,895 INFO L349 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size [2025-02-07 21:07:15,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 71 [2025-02-07 21:07:15,902 INFO L349 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2025-02-07 21:07:15,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 20 [2025-02-07 21:07:16,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317444220] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 21:07:16,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-07 21:07:16,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21] total 31 [2025-02-07 21:07:16,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660187166] [2025-02-07 21:07:16,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-07 21:07:16,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-02-07 21:07:16,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:07:16,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-02-07 21:07:16,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1677, Unknown=0, NotChecked=0, Total=1806 [2025-02-07 21:07:16,597 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 32 states, 23 states have (on average 1.565217391304348) internal successors, (36), 26 states have internal predecessors, (36), 10 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-07 21:07:17,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:07:17,481 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2025-02-07 21:07:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-07 21:07:17,482 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 23 states have (on average 1.565217391304348) internal successors, (36), 26 states have internal predecessors, (36), 10 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) Word has length 30 [2025-02-07 21:07:17,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:07:17,482 INFO L225 Difference]: With dead ends: 56 [2025-02-07 21:07:17,483 INFO L226 Difference]: Without dead ends: 37 [2025-02-07 21:07:17,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=215, Invalid=2437, Unknown=0, NotChecked=0, Total=2652 [2025-02-07 21:07:17,484 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 42 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-07 21:07:17,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 124 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-07 21:07:17,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-02-07 21:07:17,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2025-02-07 21:07:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 23 states have internal predecessors, (24), 7 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2025-02-07 21:07:17,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2025-02-07 21:07:17,489 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 30 [2025-02-07 21:07:17,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:07:17,489 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2025-02-07 21:07:17,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 23 states have (on average 1.565217391304348) internal successors, (36), 26 states have internal predecessors, (36), 10 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-07 21:07:17,489 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2025-02-07 21:07:17,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-02-07 21:07:17,490 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:07:17,490 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:07:17,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-07 21:07:17,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 21:07:17,691 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:07:17,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:07:17,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1999389066, now seen corresponding path program 4 times [2025-02-07 21:07:17,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:07:17,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423868523] [2025-02-07 21:07:17,691 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-07 21:07:17,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:07:17,701 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 35 statements into 2 equivalence classes. [2025-02-07 21:07:17,723 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 35 of 35 statements. [2025-02-07 21:07:17,723 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-07 21:07:17,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-07 21:07:18,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:07:18,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423868523] [2025-02-07 21:07:18,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423868523] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 21:07:18,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259576716] [2025-02-07 21:07:18,290 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-07 21:07:18,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 21:07:18,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:07:18,292 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) [2025-02-07 21:07:18,293 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 [2025-02-07 21:07:18,331 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 35 statements into 2 equivalence classes. [2025-02-07 21:07:18,395 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 35 of 35 statements. [2025-02-07 21:07:18,395 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-07 21:07:18,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:18,400 WARN L254 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 155 conjuncts are in the unsatisfiable core [2025-02-07 21:07:18,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:07:18,405 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 [2025-02-07 21:07:18,456 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 27 treesize of output 23 [2025-02-07 21:07:19,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-07 21:07:19,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-07 21:07:19,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-07 21:07:19,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-07 21:07:19,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-07 21:07:19,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-07 21:07:19,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 27 [2025-02-07 21:07:19,134 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 7 treesize of output 3 [2025-02-07 21:07:19,176 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 [2025-02-07 21:07:19,436 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-07 21:07:19,436 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-07 21:07:24,464 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,465 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,466 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,467 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,467 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,468 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,469 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,514 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 21:07:24,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 371 treesize of output 486 [2025-02-07 21:07:24,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 230 treesize of output 207 [2025-02-07 21:07:24,607 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,608 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,609 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 21:07:24,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 130 treesize of output 67 [2025-02-07 21:07:24,622 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,622 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,624 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,624 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,625 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,625 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,626 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,626 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,627 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,635 INFO L349 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size [2025-02-07 21:07:24,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 160 treesize of output 99 [2025-02-07 21:07:24,643 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,644 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,644 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:24,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 76 [2025-02-07 21:07:24,650 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2025-02-07 21:07:24,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 31 [2025-02-07 21:07:26,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259576716] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 21:07:26,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-07 21:07:26,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 21] total 32 [2025-02-07 21:07:26,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258166735] [2025-02-07 21:07:26,553 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-07 21:07:26,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-02-07 21:07:26,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:07:26,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-02-07 21:07:26,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1759, Unknown=0, NotChecked=0, Total=1892 [2025-02-07 21:07:26,555 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 33 states, 25 states have (on average 1.52) internal successors, (38), 27 states have internal predecessors, (38), 10 states have call successors, (11), 6 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) [2025-02-07 21:07:28,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:07:28,303 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2025-02-07 21:07:28,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-07 21:07:28,304 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 25 states have (on average 1.52) internal successors, (38), 27 states have internal predecessors, (38), 10 states have call successors, (11), 6 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) Word has length 35 [2025-02-07 21:07:28,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:07:28,304 INFO L225 Difference]: With dead ends: 58 [2025-02-07 21:07:28,304 INFO L226 Difference]: Without dead ends: 39 [2025-02-07 21:07:28,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=243, Invalid=2837, Unknown=0, NotChecked=0, Total=3080 [2025-02-07 21:07:28,305 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 31 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-07 21:07:28,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 147 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-07 21:07:28,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2025-02-07 21:07:28,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2025-02-07 21:07:28,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 24 states have internal predecessors, (25), 7 states have call successors, (7), 4 states have call predecessors, (7), 7 states have return successors, (9), 8 states have call predecessors, (9), 5 states have call successors, (9) [2025-02-07 21:07:28,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2025-02-07 21:07:28,311 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 35 [2025-02-07 21:07:28,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:07:28,311 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2025-02-07 21:07:28,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 25 states have (on average 1.52) internal successors, (38), 27 states have internal predecessors, (38), 10 states have call successors, (11), 6 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) [2025-02-07 21:07:28,311 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2025-02-07 21:07:28,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-02-07 21:07:28,312 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:07:28,312 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:07:28,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-07 21:07:28,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 21:07:28,516 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:07:28,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:07:28,516 INFO L85 PathProgramCache]: Analyzing trace with hash 972688035, now seen corresponding path program 5 times [2025-02-07 21:07:28,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:07:28,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363923038] [2025-02-07 21:07:28,516 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-07 21:07:28,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:07:28,526 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 40 statements into 6 equivalence classes. [2025-02-07 21:07:28,568 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 40 of 40 statements. [2025-02-07 21:07:28,568 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-02-07 21:07:28,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:29,132 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 8 proven. 35 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-07 21:07:29,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:07:29,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363923038] [2025-02-07 21:07:29,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363923038] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 21:07:29,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245245178] [2025-02-07 21:07:29,133 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-07 21:07:29,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 21:07:29,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:07:29,135 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) [2025-02-07 21:07:29,136 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 [2025-02-07 21:07:29,185 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 40 statements into 6 equivalence classes. [2025-02-07 21:07:29,562 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 40 of 40 statements. [2025-02-07 21:07:29,562 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-02-07 21:07:29,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:29,566 WARN L254 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 184 conjuncts are in the unsatisfiable core [2025-02-07 21:07:29,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:07:29,575 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 [2025-02-07 21:07:29,617 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 27 treesize of output 23 [2025-02-07 21:07:30,680 INFO L349 Elim1Store]: treesize reduction 792, result has 2.1 percent of original size [2025-02-07 21:07:30,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 156 treesize of output 27 [2025-02-07 21:07:30,780 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 7 treesize of output 3 [2025-02-07 21:07:30,876 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 [2025-02-07 21:07:31,164 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 8 proven. 47 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-07 21:07:31,165 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-07 21:07:43,099 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,100 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,100 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,101 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,102 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,103 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,103 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,104 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,104 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,105 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,106 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,106 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,108 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,243 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 21:07:43,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 40 case distinctions, treesize of input 891 treesize of output 1304 [2025-02-07 21:07:43,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 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 438 treesize of output 497 [2025-02-07 21:07:43,586 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,587 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,588 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,588 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,589 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,590 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 21:07:43,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 162 treesize of output 83 [2025-02-07 21:07:43,621 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,622 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,623 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,623 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 83 [2025-02-07 21:07:43,642 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,644 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,644 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,645 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 83 [2025-02-07 21:07:43,670 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,671 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,672 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,674 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,675 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,676 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,677 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,678 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,678 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,679 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,680 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,681 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,682 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,683 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,694 INFO L349 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size [2025-02-07 21:07:43,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 256 treesize of output 153 [2025-02-07 21:07:43,708 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,709 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,710 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,711 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 121 [2025-02-07 21:07:43,719 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,720 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,720 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,721 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 102 [2025-02-07 21:07:43,727 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,728 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,728 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,729 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,730 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,731 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:07:43,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 84 [2025-02-07 21:07:43,736 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 22 treesize of output 10 [2025-02-07 21:07:48,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245245178] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 21:07:48,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-07 21:07:48,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 22] total 34 [2025-02-07 21:07:48,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773777186] [2025-02-07 21:07:48,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-07 21:07:48,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-02-07 21:07:48,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:07:48,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-02-07 21:07:48,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=1932, Unknown=0, NotChecked=0, Total=2070 [2025-02-07 21:07:48,199 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 35 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 29 states have internal predecessors, (40), 10 states have call successors, (11), 6 states have call predecessors, (11), 12 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) [2025-02-07 21:07:58,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:07:58,447 INFO L93 Difference]: Finished difference Result 74 states and 96 transitions. [2025-02-07 21:07:58,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-02-07 21:07:58,448 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 29 states have internal predecessors, (40), 10 states have call successors, (11), 6 states have call predecessors, (11), 12 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) Word has length 40 [2025-02-07 21:07:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:07:58,448 INFO L225 Difference]: With dead ends: 74 [2025-02-07 21:07:58,448 INFO L226 Difference]: Without dead ends: 49 [2025-02-07 21:07:58,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=381, Invalid=4041, Unknown=0, NotChecked=0, Total=4422 [2025-02-07 21:07:58,449 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 69 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2025-02-07 21:07:58,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 174 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2025-02-07 21:07:58,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2025-02-07 21:07:58,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2025-02-07 21:07:58,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (15), 9 states have call predecessors, (15), 7 states have call successors, (15) [2025-02-07 21:07:58,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2025-02-07 21:07:58,458 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 40 [2025-02-07 21:07:58,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:07:58,458 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2025-02-07 21:07:58,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 29 states have internal predecessors, (40), 10 states have call successors, (11), 6 states have call predecessors, (11), 12 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) [2025-02-07 21:07:58,458 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2025-02-07 21:07:58,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-02-07 21:07:58,459 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:07:58,459 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:07:58,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-07 21:07:58,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 21:07:58,659 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:07:58,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:07:58,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1286813046, now seen corresponding path program 6 times [2025-02-07 21:07:58,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:07:58,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252958922] [2025-02-07 21:07:58,660 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-07 21:07:58,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:07:58,667 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 7 equivalence classes. [2025-02-07 21:07:58,713 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 45 of 45 statements. [2025-02-07 21:07:58,714 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-02-07 21:07:58,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:59,476 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 16 proven. 50 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-02-07 21:07:59,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:07:59,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252958922] [2025-02-07 21:07:59,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252958922] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 21:07:59,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220881759] [2025-02-07 21:07:59,478 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-07 21:07:59,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 21:07:59,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:07:59,480 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) [2025-02-07 21:07:59,481 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 [2025-02-07 21:07:59,546 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 7 equivalence classes. [2025-02-07 21:07:59,889 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 45 of 45 statements. [2025-02-07 21:07:59,889 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-02-07 21:07:59,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:07:59,893 WARN L254 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 211 conjuncts are in the unsatisfiable core [2025-02-07 21:07:59,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:07:59,903 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 [2025-02-07 21:07:59,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 70 [2025-02-07 21:07:59,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 25 treesize of output 24 [2025-02-07 21:07:59,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 24 treesize of output 23 [2025-02-07 21:08:03,338 INFO L349 Elim1Store]: treesize reduction 1267, result has 1.3 percent of original size [2025-02-07 21:08:03,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 232 treesize of output 75 [2025-02-07 21:08:04,100 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 7 treesize of output 3 [2025-02-07 21:08:04,218 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 [2025-02-07 21:08:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 10 proven. 63 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-07 21:08:04,928 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-07 21:08:26,058 WARN L286 SmtUtils]: Spent 9.71s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2025-02-07 21:08:34,123 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,124 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,125 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,125 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,126 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,127 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,127 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,128 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,129 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,130 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,132 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,134 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,138 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,139 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,140 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,141 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,142 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,143 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,144 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,145 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,147 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:34,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 21:08:34,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 16 stores, 0 select indices, 0 select index equivalence classes, 45 disjoint index pairs (out of 0 index pairs), introduced 16 new quantified variables, introduced 96 case distinctions, treesize of input 2047 treesize of output 3528 [2025-02-07 21:08:36,579 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,584 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,585 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,592 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,594 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,595 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,597 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,599 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,602 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,607 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 421 treesize of output 338 [2025-02-07 21:08:36,668 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,670 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,675 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,677 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,679 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,681 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,685 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,686 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,687 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,688 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,691 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,695 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,698 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,699 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:36,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 21:08:36,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 338 treesize of output 270 [2025-02-07 21:08:37,644 INFO L224 Elim1Store]: Index analysis took 240 ms [2025-02-07 21:08:37,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 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 849 treesize of output 1390 [2025-02-07 21:08:37,747 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:37,748 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:37,753 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:37,754 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:37,754 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:37,757 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:37,768 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:37,769 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:37,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 21:08:37,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 688 treesize of output 431 [2025-02-07 21:08:39,552 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,553 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,553 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,557 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,558 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,561 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,562 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,568 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,578 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,644 INFO L349 Elim1Store]: treesize reduction 15, result has 51.6 percent of original size [2025-02-07 21:08:39,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 1245 treesize of output 1004 [2025-02-07 21:08:39,678 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,679 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,679 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,682 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,683 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,684 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,684 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:39,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 987 treesize of output 735 [2025-02-07 21:08:42,011 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,012 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,012 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,014 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,015 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,017 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,018 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,019 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,020 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,021 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1991 treesize of output 1558 [2025-02-07 21:08:42,050 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,050 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,051 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,051 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,052 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,053 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,054 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,055 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,056 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,058 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:42,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1558 treesize of output 1321 [2025-02-07 21:08:43,504 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,505 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,505 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,506 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,506 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,507 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,508 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,508 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,509 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,510 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1899 treesize of output 1816 [2025-02-07 21:08:43,533 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,534 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,535 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,536 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,539 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,540 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,541 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,541 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,542 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,542 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:43,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1816 treesize of output 1733 [2025-02-07 21:08:44,832 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,833 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,837 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,838 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,839 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,839 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,840 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1761 treesize of output 1675 [2025-02-07 21:08:44,863 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,864 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,865 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,866 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,866 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,867 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,869 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:44,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1675 treesize of output 1589 [2025-02-07 21:08:46,089 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,090 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,091 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,092 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,092 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,093 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,094 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1615 treesize of output 1531 [2025-02-07 21:08:46,119 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,119 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,120 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,122 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,122 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,123 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,123 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:46,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1531 treesize of output 1447 [2025-02-07 21:08:47,066 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:47,067 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:47,068 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:47,069 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:47,070 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:47,073 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:47,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1813 treesize of output 1377 [2025-02-07 21:08:47,262 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:47,266 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:47,267 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:47,267 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:47,275 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:47,276 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-07 21:08:47,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 112