./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 65cc93bea37c503291576929a444106bffa9d5b7b84b8d294ee7e7120b60ffa5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 06:13:02,165 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 06:13:02,223 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 06:13:02,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 06:13:02,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 06:13:02,251 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 06:13:02,252 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 06:13:02,252 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 06:13:02,252 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 06:13:02,253 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 06:13:02,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 06:13:02,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 06:13:02,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 06:13:02,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 06:13:02,254 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 06:13:02,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 06:13:02,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 06:13:02,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 06:13:02,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 06:13:02,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 06:13:02,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 06:13:02,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 06:13:02,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 06:13:02,255 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 06:13:02,255 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 06:13:02,256 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 06:13:02,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 06:13:02,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 06:13:02,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 06:13:02,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 06:13:02,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 06:13:02,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 06:13:02,257 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 06:13:02,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 06:13:02,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 06:13:02,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 06:13:02,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 06:13:02,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 06:13:02,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 06:13:02,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 06:13:02,258 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65cc93bea37c503291576929a444106bffa9d5b7b84b8d294ee7e7120b60ffa5 [2025-02-06 06:13:02,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 06:13:02,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 06:13:02,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 06:13:02,502 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 06:13:02,502 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 06:13:02,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2025-02-06 06:13:03,702 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2c982cc5e/a5d9a2a8db5b4ea092086df341bcf26d/FLAGb5542176f [2025-02-06 06:13:04,118 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 06:13:04,119 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2025-02-06 06:13:04,143 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2c982cc5e/a5d9a2a8db5b4ea092086df341bcf26d/FLAGb5542176f [2025-02-06 06:13:04,158 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2c982cc5e/a5d9a2a8db5b4ea092086df341bcf26d [2025-02-06 06:13:04,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 06:13:04,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 06:13:04,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 06:13:04,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 06:13:04,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 06:13:04,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:13:04" (1/1) ... [2025-02-06 06:13:04,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514ee6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:04, skipping insertion in model container [2025-02-06 06:13:04,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:13:04" (1/1) ... [2025-02-06 06:13:04,223 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 06:13:04,843 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/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i[138616,138629] [2025-02-06 06:13:04,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 06:13:04,926 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 06:13:05,141 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/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i[138616,138629] [2025-02-06 06:13:05,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 06:13:05,218 INFO L204 MainTranslator]: Completed translation [2025-02-06 06:13:05,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05 WrapperNode [2025-02-06 06:13:05,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 06:13:05,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 06:13:05,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 06:13:05,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 06:13:05,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (1/1) ... [2025-02-06 06:13:05,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (1/1) ... [2025-02-06 06:13:05,345 INFO L138 Inliner]: procedures = 161, calls = 1531, calls flagged for inlining = 53, calls inlined = 28, statements flattened = 1843 [2025-02-06 06:13:05,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 06:13:05,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 06:13:05,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 06:13:05,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 06:13:05,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (1/1) ... [2025-02-06 06:13:05,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (1/1) ... [2025-02-06 06:13:05,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (1/1) ... [2025-02-06 06:13:05,447 INFO L175 MemorySlicer]: Split 1089 memory accesses to 22 slices as follows [2, 522, 2, 5, 11, 5, 37, 3, 3, 72, 24, 3, 8, 10, 18, 10, 6, 1, 6, 13, 3, 325]. 48 percent of accesses are in the largest equivalence class. The 793 initializations are split as follows [2, 512, 0, 5, 11, 5, 28, 0, 3, 0, 0, 0, 4, 10, 18, 10, 0, 0, 0, 13, 0, 172]. The 195 writes are split as follows [0, 0, 2, 0, 0, 0, 0, 0, 0, 72, 24, 2, 0, 0, 0, 0, 5, 0, 6, 0, 0, 84]. [2025-02-06 06:13:05,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (1/1) ... [2025-02-06 06:13:05,448 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (1/1) ... [2025-02-06 06:13:05,489 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (1/1) ... [2025-02-06 06:13:05,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (1/1) ... [2025-02-06 06:13:05,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (1/1) ... [2025-02-06 06:13:05,511 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (1/1) ... [2025-02-06 06:13:05,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 06:13:05,527 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 06:13:05,527 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 06:13:05,527 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 06:13:05,528 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (1/1) ... [2025-02-06 06:13:05,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 06:13:05,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:13:05,603 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) [2025-02-06 06:13:05,608 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 [2025-02-06 06:13:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2025-02-06 06:13:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2025-02-06 06:13:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2025-02-06 06:13:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2025-02-06 06:13:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2025-02-06 06:13:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2025-02-06 06:13:05,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2025-02-06 06:13:05,623 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-02-06 06:13:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2025-02-06 06:13:05,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2025-02-06 06:13:05,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2025-02-06 06:13:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2025-02-06 06:13:05,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2025-02-06 06:13:05,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2025-02-06 06:13:05,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2025-02-06 06:13:05,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2025-02-06 06:13:05,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2025-02-06 06:13:05,627 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2025-02-06 06:13:05,627 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2025-02-06 06:13:05,627 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-02-06 06:13:05,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2025-02-06 06:13:05,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2025-02-06 06:13:05,627 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2025-02-06 06:13:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2025-02-06 06:13:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2025-02-06 06:13:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2025-02-06 06:13:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2025-02-06 06:13:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2025-02-06 06:13:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2025-02-06 06:13:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 06:13:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2025-02-06 06:13:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2025-02-06 06:13:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 06:13:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2025-02-06 06:13:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2025-02-06 06:13:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 06:13:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 06:13:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 06:13:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 06:13:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2025-02-06 06:13:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2025-02-06 06:13:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2025-02-06 06:13:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 06:13:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2025-02-06 06:13:05,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2025-02-06 06:13:05,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2025-02-06 06:13:05,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2025-02-06 06:13:05,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2025-02-06 06:13:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2025-02-06 06:13:05,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2025-02-06 06:13:05,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2025-02-06 06:13:05,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2025-02-06 06:13:05,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2025-02-06 06:13:05,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2025-02-06 06:13:05,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2025-02-06 06:13:05,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2025-02-06 06:13:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2025-02-06 06:13:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2025-02-06 06:13:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2025-02-06 06:13:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2025-02-06 06:13:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2025-02-06 06:13:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2025-02-06 06:13:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2025-02-06 06:13:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 06:13:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2025-02-06 06:13:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2025-02-06 06:13:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2025-02-06 06:13:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2025-02-06 06:13:05,967 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 06:13:05,969 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 06:13:06,113 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5648: havoc #t~malloc355.base, #t~malloc355.offset; [2025-02-06 06:13:06,375 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4139: call ULTIMATE.dealloc(~#ms_cmd~0.base, ~#ms_cmd~0.offset);havoc ~#ms_cmd~0.base, ~#ms_cmd~0.offset;call ULTIMATE.dealloc(~#buf~1.base, ~#buf~1.offset);havoc ~#buf~1.base, ~#buf~1.offset; [2025-02-06 06:13:06,383 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5683: havoc #t~nondet359; [2025-02-06 06:13:06,387 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5690: havoc #t~nondet360; [2025-02-06 06:13:06,391 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5703: havoc #t~nondet361; [2025-02-06 06:13:06,393 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3444: havoc #t~mem24; [2025-02-06 06:13:06,498 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4065: call ULTIMATE.dealloc(~#expect~0.base, ~#expect~0.offset);havoc ~#expect~0.base, ~#expect~0.offset; [2025-02-06 06:13:06,806 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3927: call ULTIMATE.dealloc(~#rs_cmd~0.base, ~#rs_cmd~0.offset);havoc ~#rs_cmd~0.base, ~#rs_cmd~0.offset;call ULTIMATE.dealloc(~#buf~0.base, ~#buf~0.offset);havoc ~#buf~0.base, ~#buf~0.offset; [2025-02-06 06:13:07,294 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4220: call ULTIMATE.dealloc(pf_get_capacity_~#rc_cmd~0#1.base, pf_get_capacity_~#rc_cmd~0#1.offset);havoc pf_get_capacity_~#rc_cmd~0#1.base, pf_get_capacity_~#rc_cmd~0#1.offset;call ULTIMATE.dealloc(pf_get_capacity_~#buf~2#1.base, pf_get_capacity_~#buf~2#1.offset);havoc pf_get_capacity_~#buf~2#1.base, pf_get_capacity_~#buf~2#1.offset; [2025-02-06 06:13:07,294 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4262: call ULTIMATE.dealloc(~#ms~0#1.base, ~#ms~0#1.offset);havoc ~#ms~0#1.base, ~#ms~0#1.offset;call ULTIMATE.dealloc(~#mf~0#1.base, ~#mf~0#1.offset);havoc ~#mf~0#1.base, ~#mf~0#1.offset;call ULTIMATE.dealloc(~#id~0#1.base, ~#id~0#1.offset);havoc ~#id~0#1.base, ~#id~0#1.offset;call ULTIMATE.dealloc(~#id_cmd~0#1.base, ~#id_cmd~0#1.offset);havoc ~#id_cmd~0#1.base, ~#id_cmd~0#1.offset;call ULTIMATE.dealloc(~#buf~3#1.base, ~#buf~3#1.offset);havoc ~#buf~3#1.base, ~#buf~3#1.offset; [2025-02-06 06:13:07,299 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5718: havoc schedule_timeout_interruptible_#t~nondet364#1; [2025-02-06 06:13:07,484 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4010: call ULTIMATE.dealloc(~#lo_cmd~0.base, ~#lo_cmd~0.offset);havoc ~#lo_cmd~0.base, ~#lo_cmd~0.offset; [2025-02-06 06:13:12,343 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5654: havoc blk_init_queue_#t~ret357#1.base, blk_init_queue_#t~ret357#1.offset; [2025-02-06 06:13:12,343 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5710: havoc register_blkdev_#t~nondet362#1; [2025-02-06 06:13:12,604 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4035: call ULTIMATE.dealloc(pf_eject_~#ej_cmd~0#1.base, pf_eject_~#ej_cmd~0#1.offset);havoc pf_eject_~#ej_cmd~0#1.base, pf_eject_~#ej_cmd~0#1.offset; [2025-02-06 06:13:12,742 INFO L? ?]: Removed 414 outVars from TransFormulas that were not future-live. [2025-02-06 06:13:12,742 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 06:13:12,767 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 06:13:12,767 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 06:13:12,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:13:12 BoogieIcfgContainer [2025-02-06 06:13:12,767 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 06:13:12,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 06:13:12,769 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 06:13:12,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 06:13:12,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:13:04" (1/3) ... [2025-02-06 06:13:12,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf8250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:13:12, skipping insertion in model container [2025-02-06 06:13:12,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:13:05" (2/3) ... [2025-02-06 06:13:12,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf8250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:13:12, skipping insertion in model container [2025-02-06 06:13:12,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:13:12" (3/3) ... [2025-02-06 06:13:12,776 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2025-02-06 06:13:12,787 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 06:13:12,791 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i that has 39 procedures, 582 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-06 06:13:12,847 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 06:13:12,858 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;@119253b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 06:13:12,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 06:13:12,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 585 states, 413 states have (on average 1.3559322033898304) internal successors, (560), 433 states have internal predecessors, (560), 128 states have call successors, (128), 38 states have call predecessors, (128), 38 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2025-02-06 06:13:12,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-06 06:13:12,872 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:12,873 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:12,873 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:12,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:12,878 INFO L85 PathProgramCache]: Analyzing trace with hash -576588868, now seen corresponding path program 1 times [2025-02-06 06:13:12,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:12,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695329604] [2025-02-06 06:13:12,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:12,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:13,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 06:13:13,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 06:13:13,940 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:13,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:13:14,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:13:14,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695329604] [2025-02-06 06:13:14,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695329604] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:13:14,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:13:14,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 06:13:14,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687419667] [2025-02-06 06:13:14,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:13:14,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:13:14,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:13:14,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:13:14,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:13:14,315 INFO L87 Difference]: Start difference. First operand has 585 states, 413 states have (on average 1.3559322033898304) internal successors, (560), 433 states have internal predecessors, (560), 128 states have call successors, (128), 38 states have call predecessors, (128), 38 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 06:13:14,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:13:14,765 INFO L93 Difference]: Finished difference Result 1621 states and 2315 transitions. [2025-02-06 06:13:14,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:13:14,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2025-02-06 06:13:14,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:13:14,780 INFO L225 Difference]: With dead ends: 1621 [2025-02-06 06:13:14,781 INFO L226 Difference]: Without dead ends: 1023 [2025-02-06 06:13:14,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:13:14,791 INFO L435 NwaCegarLoop]: 1107 mSDtfsCounter, 628 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 06:13:14,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1860 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 06:13:14,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2025-02-06 06:13:14,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1009. [2025-02-06 06:13:14,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 723 states have (on average 1.326417704011065) internal successors, (959), 736 states have internal predecessors, (959), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (213), 213 states have call predecessors, (213), 213 states have call successors, (213) [2025-02-06 06:13:14,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1391 transitions. [2025-02-06 06:13:14,883 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1391 transitions. Word has length 16 [2025-02-06 06:13:14,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:13:14,883 INFO L471 AbstractCegarLoop]: Abstraction has 1009 states and 1391 transitions. [2025-02-06 06:13:14,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 06:13:14,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1391 transitions. [2025-02-06 06:13:14,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-06 06:13:14,884 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:14,885 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:14,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 06:13:14,888 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:14,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:14,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1936954679, now seen corresponding path program 1 times [2025-02-06 06:13:14,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:14,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839723937] [2025-02-06 06:13:14,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:14,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:15,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 06:13:15,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 06:13:15,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:15,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:13:15,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:13:15,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839723937] [2025-02-06 06:13:15,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839723937] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:13:15,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:13:15,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 06:13:15,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828217887] [2025-02-06 06:13:15,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:13:15,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:13:15,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:13:15,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:13:15,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:13:15,809 INFO L87 Difference]: Start difference. First operand 1009 states and 1391 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 06:13:15,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:13:15,936 INFO L93 Difference]: Finished difference Result 2015 states and 2779 transitions. [2025-02-06 06:13:15,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:13:15,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2025-02-06 06:13:15,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:13:15,947 INFO L225 Difference]: With dead ends: 2015 [2025-02-06 06:13:15,947 INFO L226 Difference]: Without dead ends: 1009 [2025-02-06 06:13:15,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:13:15,952 INFO L435 NwaCegarLoop]: 773 mSDtfsCounter, 775 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:13:15,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 773 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 06:13:15,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2025-02-06 06:13:16,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 1009. [2025-02-06 06:13:16,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 723 states have (on average 1.3236514522821576) internal successors, (957), 736 states have internal predecessors, (957), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (213), 213 states have call predecessors, (213), 213 states have call successors, (213) [2025-02-06 06:13:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1389 transitions. [2025-02-06 06:13:16,035 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1389 transitions. Word has length 18 [2025-02-06 06:13:16,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:13:16,036 INFO L471 AbstractCegarLoop]: Abstraction has 1009 states and 1389 transitions. [2025-02-06 06:13:16,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 06:13:16,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1389 transitions. [2025-02-06 06:13:16,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-06 06:13:16,038 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:16,038 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:16,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 06:13:16,038 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:16,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:16,041 INFO L85 PathProgramCache]: Analyzing trace with hash -163061642, now seen corresponding path program 1 times [2025-02-06 06:13:16,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:16,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558623629] [2025-02-06 06:13:16,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:16,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:16,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 06:13:16,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 06:13:16,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:16,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:13:17,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:13:17,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558623629] [2025-02-06 06:13:17,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558623629] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:13:17,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:13:17,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 06:13:17,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821248341] [2025-02-06 06:13:17,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:13:17,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:13:17,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:13:17,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:13:17,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:13:17,026 INFO L87 Difference]: Start difference. First operand 1009 states and 1389 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 06:13:21,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 06:13:21,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:13:21,235 INFO L93 Difference]: Finished difference Result 2388 states and 3280 transitions. [2025-02-06 06:13:21,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:13:21,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2025-02-06 06:13:21,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:13:21,246 INFO L225 Difference]: With dead ends: 2388 [2025-02-06 06:13:21,247 INFO L226 Difference]: Without dead ends: 1382 [2025-02-06 06:13:21,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:13:21,253 INFO L435 NwaCegarLoop]: 1251 mSDtfsCounter, 742 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:13:21,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1788 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2025-02-06 06:13:21,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2025-02-06 06:13:21,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1378. [2025-02-06 06:13:21,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 979 states have (on average 1.32073544433095) internal successors, (1293), 996 states have internal predecessors, (1293), 300 states have call successors, (300), 99 states have call predecessors, (300), 98 states have return successors, (294), 294 states have call predecessors, (294), 294 states have call successors, (294) [2025-02-06 06:13:21,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1887 transitions. [2025-02-06 06:13:21,309 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1887 transitions. Word has length 22 [2025-02-06 06:13:21,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:13:21,309 INFO L471 AbstractCegarLoop]: Abstraction has 1378 states and 1887 transitions. [2025-02-06 06:13:21,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 06:13:21,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1887 transitions. [2025-02-06 06:13:21,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-02-06 06:13:21,310 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:21,310 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:21,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 06:13:21,310 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:21,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:21,311 INFO L85 PathProgramCache]: Analyzing trace with hash -611773278, now seen corresponding path program 1 times [2025-02-06 06:13:21,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:21,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638161751] [2025-02-06 06:13:21,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:21,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:21,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 06:13:21,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 06:13:21,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:21,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:22,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:13:22,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:13:22,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638161751] [2025-02-06 06:13:22,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638161751] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:13:22,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:13:22,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 06:13:22,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794253090] [2025-02-06 06:13:22,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:13:22,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:13:22,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:13:22,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:13:22,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:13:22,074 INFO L87 Difference]: Start difference. First operand 1378 states and 1887 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 06:13:22,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:13:22,203 INFO L93 Difference]: Finished difference Result 2771 states and 3799 transitions. [2025-02-06 06:13:22,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:13:22,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2025-02-06 06:13:22,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:13:22,210 INFO L225 Difference]: With dead ends: 2771 [2025-02-06 06:13:22,210 INFO L226 Difference]: Without dead ends: 1396 [2025-02-06 06:13:22,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:13:22,215 INFO L435 NwaCegarLoop]: 769 mSDtfsCounter, 12 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:13:22,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1535 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 06:13:22,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2025-02-06 06:13:22,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1380. [2025-02-06 06:13:22,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 981 states have (on average 1.3200815494393476) internal successors, (1295), 998 states have internal predecessors, (1295), 300 states have call successors, (300), 99 states have call predecessors, (300), 98 states have return successors, (294), 294 states have call predecessors, (294), 294 states have call successors, (294) [2025-02-06 06:13:22,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1889 transitions. [2025-02-06 06:13:22,256 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1889 transitions. Word has length 30 [2025-02-06 06:13:22,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:13:22,256 INFO L471 AbstractCegarLoop]: Abstraction has 1380 states and 1889 transitions. [2025-02-06 06:13:22,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 06:13:22,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1889 transitions. [2025-02-06 06:13:22,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-02-06 06:13:22,257 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:22,258 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:22,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 06:13:22,258 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:22,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:22,258 INFO L85 PathProgramCache]: Analyzing trace with hash 129021693, now seen corresponding path program 1 times [2025-02-06 06:13:22,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:22,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160878562] [2025-02-06 06:13:22,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:22,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:22,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 06:13:22,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 06:13:22,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:22,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:23,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:13:23,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:13:23,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160878562] [2025-02-06 06:13:23,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160878562] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:13:23,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888715952] [2025-02-06 06:13:23,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:23,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:23,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:13:23,257 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) [2025-02-06 06:13:23,264 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 [2025-02-06 06:13:24,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 06:13:24,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 06:13:24,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:24,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:24,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 2935 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 06:13:24,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:13:24,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 06:13:24,483 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 06:13:24,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888715952] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:13:24,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 06:13:24,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-02-06 06:13:24,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877341782] [2025-02-06 06:13:24,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:13:24,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:13:24,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:13:24,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:13:24,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:24,484 INFO L87 Difference]: Start difference. First operand 1380 states and 1889 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 06:13:24,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:13:24,618 INFO L93 Difference]: Finished difference Result 2795 states and 3835 transitions. [2025-02-06 06:13:24,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:13:24,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2025-02-06 06:13:24,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:13:24,626 INFO L225 Difference]: With dead ends: 2795 [2025-02-06 06:13:24,627 INFO L226 Difference]: Without dead ends: 1418 [2025-02-06 06:13:24,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:24,632 INFO L435 NwaCegarLoop]: 778 mSDtfsCounter, 16 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:13:24,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1542 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 06:13:24,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2025-02-06 06:13:24,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1384. [2025-02-06 06:13:24,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 985 states have (on average 1.3187817258883248) internal successors, (1299), 1002 states have internal predecessors, (1299), 300 states have call successors, (300), 99 states have call predecessors, (300), 98 states have return successors, (294), 294 states have call predecessors, (294), 294 states have call successors, (294) [2025-02-06 06:13:24,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1893 transitions. [2025-02-06 06:13:24,678 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1893 transitions. Word has length 34 [2025-02-06 06:13:24,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:13:24,678 INFO L471 AbstractCegarLoop]: Abstraction has 1384 states and 1893 transitions. [2025-02-06 06:13:24,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 06:13:24,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1893 transitions. [2025-02-06 06:13:24,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-02-06 06:13:24,679 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:24,679 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:24,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 06:13:24,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:24,880 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:24,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:24,881 INFO L85 PathProgramCache]: Analyzing trace with hash -617309044, now seen corresponding path program 1 times [2025-02-06 06:13:24,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:24,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384733056] [2025-02-06 06:13:24,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:24,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:25,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-06 06:13:25,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-06 06:13:25,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:25,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:25,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:13:25,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:13:25,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384733056] [2025-02-06 06:13:25,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384733056] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:13:25,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646213118] [2025-02-06 06:13:25,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:25,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:25,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:13:25,696 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) [2025-02-06 06:13:25,697 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 [2025-02-06 06:13:26,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-06 06:13:26,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-06 06:13:26,934 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:26,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:26,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 3006 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 06:13:26,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:13:26,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 06:13:26,970 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 06:13:26,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646213118] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:13:26,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 06:13:26,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-02-06 06:13:26,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748781148] [2025-02-06 06:13:26,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:13:26,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:13:26,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:13:26,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:13:26,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:26,972 INFO L87 Difference]: Start difference. First operand 1384 states and 1893 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 06:13:27,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:13:27,100 INFO L93 Difference]: Finished difference Result 2797 states and 3835 transitions. [2025-02-06 06:13:27,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:13:27,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2025-02-06 06:13:27,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:13:27,109 INFO L225 Difference]: With dead ends: 2797 [2025-02-06 06:13:27,109 INFO L226 Difference]: Without dead ends: 1416 [2025-02-06 06:13:27,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:27,115 INFO L435 NwaCegarLoop]: 771 mSDtfsCounter, 22 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:13:27,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1525 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 06:13:27,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2025-02-06 06:13:27,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1416. [2025-02-06 06:13:27,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1009 states have (on average 1.3211100099108029) internal successors, (1333), 1026 states have internal predecessors, (1333), 308 states have call successors, (308), 99 states have call predecessors, (308), 98 states have return successors, (302), 302 states have call predecessors, (302), 302 states have call successors, (302) [2025-02-06 06:13:27,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1943 transitions. [2025-02-06 06:13:27,173 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1943 transitions. Word has length 39 [2025-02-06 06:13:27,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:13:27,173 INFO L471 AbstractCegarLoop]: Abstraction has 1416 states and 1943 transitions. [2025-02-06 06:13:27,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 06:13:27,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1943 transitions. [2025-02-06 06:13:27,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 06:13:27,175 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:27,175 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:27,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 06:13:27,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:27,380 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:27,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:27,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1487668537, now seen corresponding path program 1 times [2025-02-06 06:13:27,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:27,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557507535] [2025-02-06 06:13:27,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:27,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:27,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 06:13:28,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 06:13:28,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:28,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:28,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:13:28,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:13:28,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557507535] [2025-02-06 06:13:28,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557507535] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:13:28,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209540570] [2025-02-06 06:13:28,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:28,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:28,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:13:28,171 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) [2025-02-06 06:13:28,174 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 [2025-02-06 06:13:29,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 06:13:29,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 06:13:29,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:29,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:29,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 3097 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 06:13:29,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:13:29,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 06:13:29,380 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 06:13:29,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209540570] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:13:29,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 06:13:29,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-02-06 06:13:29,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606878246] [2025-02-06 06:13:29,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:13:29,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:13:29,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:13:29,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:13:29,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:29,381 INFO L87 Difference]: Start difference. First operand 1416 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 06:13:29,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:13:29,497 INFO L93 Difference]: Finished difference Result 1438 states and 1969 transitions. [2025-02-06 06:13:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:13:29,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2025-02-06 06:13:29,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:13:29,505 INFO L225 Difference]: With dead ends: 1438 [2025-02-06 06:13:29,505 INFO L226 Difference]: Without dead ends: 1427 [2025-02-06 06:13:29,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:29,507 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 780 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:13:29,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 799 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 06:13:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2025-02-06 06:13:29,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1416. [2025-02-06 06:13:29,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1009 states have (on average 1.3201189296333002) internal successors, (1332), 1026 states have internal predecessors, (1332), 308 states have call successors, (308), 99 states have call predecessors, (308), 98 states have return successors, (302), 302 states have call predecessors, (302), 302 states have call successors, (302) [2025-02-06 06:13:29,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1942 transitions. [2025-02-06 06:13:29,551 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1942 transitions. Word has length 50 [2025-02-06 06:13:29,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:13:29,552 INFO L471 AbstractCegarLoop]: Abstraction has 1416 states and 1942 transitions. [2025-02-06 06:13:29,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 06:13:29,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1942 transitions. [2025-02-06 06:13:29,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 06:13:29,553 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:29,553 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:29,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 06:13:29,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:29,754 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:29,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:29,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1459039386, now seen corresponding path program 1 times [2025-02-06 06:13:29,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:29,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487662526] [2025-02-06 06:13:29,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:29,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:30,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 06:13:30,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 06:13:30,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:30,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:30,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:13:30,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:13:30,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487662526] [2025-02-06 06:13:30,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487662526] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:13:30,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172744647] [2025-02-06 06:13:30,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:30,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:30,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:13:30,632 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) [2025-02-06 06:13:30,636 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 [2025-02-06 06:13:31,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 06:13:31,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 06:13:31,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:31,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:31,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 3092 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 06:13:31,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:13:32,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 06:13:32,134 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 06:13:32,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172744647] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:13:32,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 06:13:32,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-02-06 06:13:32,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713457218] [2025-02-06 06:13:32,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:13:32,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:13:32,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:13:32,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:13:32,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:32,135 INFO L87 Difference]: Start difference. First operand 1416 states and 1942 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 06:13:36,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 06:13:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:13:36,270 INFO L93 Difference]: Finished difference Result 1418 states and 1943 transitions. [2025-02-06 06:13:36,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:13:36,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2025-02-06 06:13:36,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:13:36,287 INFO L225 Difference]: With dead ends: 1418 [2025-02-06 06:13:36,288 INFO L226 Difference]: Without dead ends: 1415 [2025-02-06 06:13:36,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:36,289 INFO L435 NwaCegarLoop]: 771 mSDtfsCounter, 736 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:13:36,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 771 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2025-02-06 06:13:36,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2025-02-06 06:13:36,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1415. [2025-02-06 06:13:36,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1009 states have (on average 1.3191278493557979) internal successors, (1331), 1025 states have internal predecessors, (1331), 307 states have call successors, (307), 99 states have call predecessors, (307), 98 states have return successors, (302), 302 states have call predecessors, (302), 302 states have call successors, (302) [2025-02-06 06:13:36,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1940 transitions. [2025-02-06 06:13:36,338 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1940 transitions. Word has length 50 [2025-02-06 06:13:36,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:13:36,339 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 1940 transitions. [2025-02-06 06:13:36,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 06:13:36,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1940 transitions. [2025-02-06 06:13:36,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-02-06 06:13:36,341 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:36,341 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:36,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 06:13:36,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-06 06:13:36,542 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:36,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:36,542 INFO L85 PathProgramCache]: Analyzing trace with hash 2013898341, now seen corresponding path program 1 times [2025-02-06 06:13:36,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:36,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319642067] [2025-02-06 06:13:36,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:36,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:37,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-06 06:13:37,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-06 06:13:37,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:37,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:37,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:13:37,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:13:37,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319642067] [2025-02-06 06:13:37,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319642067] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:13:37,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78522645] [2025-02-06 06:13:37,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:37,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:37,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:13:37,350 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) [2025-02-06 06:13:37,355 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 [2025-02-06 06:13:38,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-06 06:13:38,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-06 06:13:38,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:38,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:38,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 3094 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 06:13:38,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:13:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 06:13:38,726 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 06:13:38,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78522645] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:13:38,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 06:13:38,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-02-06 06:13:38,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043843724] [2025-02-06 06:13:38,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:13:38,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:13:38,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:13:38,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:13:38,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:38,728 INFO L87 Difference]: Start difference. First operand 1415 states and 1940 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 06:13:42,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 06:13:42,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:13:42,869 INFO L93 Difference]: Finished difference Result 1417 states and 1941 transitions. [2025-02-06 06:13:42,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:13:42,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 51 [2025-02-06 06:13:42,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:13:42,877 INFO L225 Difference]: With dead ends: 1417 [2025-02-06 06:13:42,877 INFO L226 Difference]: Without dead ends: 1414 [2025-02-06 06:13:42,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:42,879 INFO L435 NwaCegarLoop]: 769 mSDtfsCounter, 733 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:13:42,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 769 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2025-02-06 06:13:42,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2025-02-06 06:13:42,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1414. [2025-02-06 06:13:42,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1009 states have (on average 1.3181367690782952) internal successors, (1330), 1024 states have internal predecessors, (1330), 306 states have call successors, (306), 99 states have call predecessors, (306), 98 states have return successors, (302), 302 states have call predecessors, (302), 302 states have call successors, (302) [2025-02-06 06:13:42,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1938 transitions. [2025-02-06 06:13:42,929 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1938 transitions. Word has length 51 [2025-02-06 06:13:42,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:13:42,929 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 1938 transitions. [2025-02-06 06:13:42,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 06:13:42,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1938 transitions. [2025-02-06 06:13:42,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-02-06 06:13:42,930 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:42,931 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:42,943 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 [2025-02-06 06:13:43,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:43,132 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:43,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:43,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1994182841, now seen corresponding path program 1 times [2025-02-06 06:13:43,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:43,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771959335] [2025-02-06 06:13:43,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:43,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:43,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-02-06 06:13:43,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 06:13:43,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:43,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:43,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:13:43,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:13:43,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771959335] [2025-02-06 06:13:43,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771959335] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:13:43,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814764520] [2025-02-06 06:13:43,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:43,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:43,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:13:43,934 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) [2025-02-06 06:13:43,936 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 [2025-02-06 06:13:44,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-02-06 06:13:45,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 06:13:45,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:45,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:45,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 06:13:45,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:13:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 06:13:45,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 06:13:45,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814764520] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:13:45,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 06:13:45,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-02-06 06:13:45,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491026587] [2025-02-06 06:13:45,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:13:45,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:13:45,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:13:45,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:13:45,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:45,323 INFO L87 Difference]: Start difference. First operand 1414 states and 1938 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 06:13:49,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 06:13:49,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:13:49,496 INFO L93 Difference]: Finished difference Result 1416 states and 1939 transitions. [2025-02-06 06:13:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:13:49,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2025-02-06 06:13:49,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:13:49,502 INFO L225 Difference]: With dead ends: 1416 [2025-02-06 06:13:49,503 INFO L226 Difference]: Without dead ends: 1413 [2025-02-06 06:13:49,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:49,504 INFO L435 NwaCegarLoop]: 767 mSDtfsCounter, 730 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:13:49,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 767 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2025-02-06 06:13:49,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2025-02-06 06:13:49,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1413. [2025-02-06 06:13:49,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1009 states have (on average 1.3171456888007929) internal successors, (1329), 1023 states have internal predecessors, (1329), 305 states have call successors, (305), 99 states have call predecessors, (305), 98 states have return successors, (302), 302 states have call predecessors, (302), 302 states have call successors, (302) [2025-02-06 06:13:49,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1936 transitions. [2025-02-06 06:13:49,615 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1936 transitions. Word has length 52 [2025-02-06 06:13:49,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:13:49,616 INFO L471 AbstractCegarLoop]: Abstraction has 1413 states and 1936 transitions. [2025-02-06 06:13:49,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 06:13:49,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1936 transitions. [2025-02-06 06:13:49,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-06 06:13:49,617 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:49,617 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:49,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 06:13:49,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-06 06:13:49,818 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:49,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:49,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1690648922, now seen corresponding path program 1 times [2025-02-06 06:13:49,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:49,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767811287] [2025-02-06 06:13:49,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:49,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:50,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-06 06:13:50,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-06 06:13:50,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:50,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:13:50,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:13:50,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767811287] [2025-02-06 06:13:50,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767811287] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:13:50,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177591662] [2025-02-06 06:13:50,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:50,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:50,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:13:50,610 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 06:13:50,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 06:13:51,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-06 06:13:51,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-06 06:13:51,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:51,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:51,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 06:13:51,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:13:52,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 06:13:52,014 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 06:13:52,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177591662] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:13:52,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 06:13:52,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-02-06 06:13:52,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723459623] [2025-02-06 06:13:52,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:13:52,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:13:52,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:13:52,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:13:52,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:52,016 INFO L87 Difference]: Start difference. First operand 1413 states and 1936 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 06:13:56,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 06:13:56,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:13:56,220 INFO L93 Difference]: Finished difference Result 1666 states and 2270 transitions. [2025-02-06 06:13:56,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:13:56,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 53 [2025-02-06 06:13:56,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:13:56,230 INFO L225 Difference]: With dead ends: 1666 [2025-02-06 06:13:56,231 INFO L226 Difference]: Without dead ends: 1634 [2025-02-06 06:13:56,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:56,233 INFO L435 NwaCegarLoop]: 1075 mSDtfsCounter, 657 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-02-06 06:13:56,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1461 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2025-02-06 06:13:56,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2025-02-06 06:13:56,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2025-02-06 06:13:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1159 states have (on average 1.3106125970664366) internal successors, (1519), 1173 states have internal predecessors, (1519), 357 states have call successors, (357), 118 states have call predecessors, (357), 117 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) [2025-02-06 06:13:56,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2232 transitions. [2025-02-06 06:13:56,292 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2232 transitions. Word has length 53 [2025-02-06 06:13:56,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:13:56,293 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2232 transitions. [2025-02-06 06:13:56,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 06:13:56,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2232 transitions. [2025-02-06 06:13:56,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-06 06:13:56,297 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:56,297 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:56,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 06:13:56,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:56,498 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:56,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:56,499 INFO L85 PathProgramCache]: Analyzing trace with hash -566424988, now seen corresponding path program 1 times [2025-02-06 06:13:56,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:56,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939641068] [2025-02-06 06:13:56,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:56,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:57,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 06:13:57,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 06:13:57,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:57,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:57,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:13:57,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:13:57,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939641068] [2025-02-06 06:13:57,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939641068] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:13:57,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145507436] [2025-02-06 06:13:57,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:57,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:57,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:13:57,259 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 06:13:57,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 06:13:58,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 06:13:58,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 06:13:58,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:58,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:13:58,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 3191 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 06:13:58,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:13:58,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 06:13:58,687 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 06:13:58,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145507436] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:13:58,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 06:13:58,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-02-06 06:13:58,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976957845] [2025-02-06 06:13:58,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:13:58,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:13:58,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:13:58,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:13:58,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:58,688 INFO L87 Difference]: Start difference. First operand 1634 states and 2232 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 06:13:58,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:13:58,914 INFO L93 Difference]: Finished difference Result 3733 states and 5077 transitions. [2025-02-06 06:13:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:13:58,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2025-02-06 06:13:58,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:13:58,924 INFO L225 Difference]: With dead ends: 3733 [2025-02-06 06:13:58,924 INFO L226 Difference]: Without dead ends: 2550 [2025-02-06 06:13:58,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:13:58,929 INFO L435 NwaCegarLoop]: 729 mSDtfsCounter, 697 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 06:13:58,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1402 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 06:13:58,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2025-02-06 06:13:59,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2547. [2025-02-06 06:13:59,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2547 states, 1812 states have (on average 1.3079470198675496) internal successors, (2370), 1833 states have internal predecessors, (2370), 541 states have call successors, (541), 194 states have call predecessors, (541), 193 states have return successors, (540), 540 states have call predecessors, (540), 540 states have call successors, (540) [2025-02-06 06:13:59,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2547 states to 2547 states and 3451 transitions. [2025-02-06 06:13:59,025 INFO L78 Accepts]: Start accepts. Automaton has 2547 states and 3451 transitions. Word has length 71 [2025-02-06 06:13:59,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:13:59,025 INFO L471 AbstractCegarLoop]: Abstraction has 2547 states and 3451 transitions. [2025-02-06 06:13:59,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 06:13:59,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2547 states and 3451 transitions. [2025-02-06 06:13:59,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 06:13:59,029 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:13:59,029 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:13:59,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 06:13:59,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:13:59,230 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:13:59,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:13:59,231 INFO L85 PathProgramCache]: Analyzing trace with hash 165976272, now seen corresponding path program 1 times [2025-02-06 06:13:59,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:13:59,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392861337] [2025-02-06 06:13:59,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:13:59,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:13:59,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 06:13:59,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 06:13:59,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:13:59,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:00,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:14:00,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:14:00,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392861337] [2025-02-06 06:14:00,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392861337] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:14:00,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528267337] [2025-02-06 06:14:00,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:00,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:14:00,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:14:00,154 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 06:14:00,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 06:14:01,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 06:14:01,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 06:14:01,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:01,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:01,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 3740 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 06:14:01,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:14:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 06:14:01,654 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 06:14:01,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528267337] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:14:01,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 06:14:01,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-02-06 06:14:01,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034359271] [2025-02-06 06:14:01,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:14:01,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:14:01,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:14:01,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:14:01,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:14:01,655 INFO L87 Difference]: Start difference. First operand 2547 states and 3451 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-06 06:14:01,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:14:01,805 INFO L93 Difference]: Finished difference Result 5098 states and 7049 transitions. [2025-02-06 06:14:01,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:14:01,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2025-02-06 06:14:01,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:14:01,816 INFO L225 Difference]: With dead ends: 5098 [2025-02-06 06:14:01,816 INFO L226 Difference]: Without dead ends: 2554 [2025-02-06 06:14:01,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:14:01,825 INFO L435 NwaCegarLoop]: 738 mSDtfsCounter, 0 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:14:01,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1471 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 06:14:01,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2025-02-06 06:14:01,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 2554. [2025-02-06 06:14:01,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 1819 states have (on average 1.3067619571192963) internal successors, (2377), 1840 states have internal predecessors, (2377), 541 states have call successors, (541), 194 states have call predecessors, (541), 193 states have return successors, (540), 540 states have call predecessors, (540), 540 states have call successors, (540) [2025-02-06 06:14:01,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3458 transitions. [2025-02-06 06:14:01,930 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3458 transitions. Word has length 135 [2025-02-06 06:14:01,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:14:01,930 INFO L471 AbstractCegarLoop]: Abstraction has 2554 states and 3458 transitions. [2025-02-06 06:14:01,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-06 06:14:01,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3458 transitions. [2025-02-06 06:14:01,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-02-06 06:14:01,935 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:14:01,935 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:14:01,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 06:14:02,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:14:02,136 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:14:02,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:14:02,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1504455710, now seen corresponding path program 1 times [2025-02-06 06:14:02,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:14:02,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860928841] [2025-02-06 06:14:02,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:02,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:14:02,736 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-02-06 06:14:02,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-02-06 06:14:02,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:02,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:02,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:14:02,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:14:02,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860928841] [2025-02-06 06:14:02,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860928841] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:14:02,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964019661] [2025-02-06 06:14:02,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:02,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:14:02,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:14:02,940 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 06:14:02,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 06:14:04,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-02-06 06:14:04,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-02-06 06:14:04,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:04,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:04,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 3745 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 06:14:04,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:14:04,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 06:14:04,473 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 06:14:04,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964019661] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:14:04,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 06:14:04,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-02-06 06:14:04,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852606399] [2025-02-06 06:14:04,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:14:04,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:14:04,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:14:04,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:14:04,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:14:04,475 INFO L87 Difference]: Start difference. First operand 2554 states and 3458 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2025-02-06 06:14:04,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:14:04,615 INFO L93 Difference]: Finished difference Result 5119 states and 7007 transitions. [2025-02-06 06:14:04,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:14:04,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 136 [2025-02-06 06:14:04,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:14:04,625 INFO L225 Difference]: With dead ends: 5119 [2025-02-06 06:14:04,625 INFO L226 Difference]: Without dead ends: 2568 [2025-02-06 06:14:04,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:14:04,632 INFO L435 NwaCegarLoop]: 737 mSDtfsCounter, 1 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:14:04,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1467 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 06:14:04,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2025-02-06 06:14:04,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 2561. [2025-02-06 06:14:04,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 1826 states have (on average 1.3055859802847756) internal successors, (2384), 1847 states have internal predecessors, (2384), 541 states have call successors, (541), 194 states have call predecessors, (541), 193 states have return successors, (540), 540 states have call predecessors, (540), 540 states have call successors, (540) [2025-02-06 06:14:04,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 3465 transitions. [2025-02-06 06:14:04,721 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 3465 transitions. Word has length 136 [2025-02-06 06:14:04,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:14:04,722 INFO L471 AbstractCegarLoop]: Abstraction has 2561 states and 3465 transitions. [2025-02-06 06:14:04,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2025-02-06 06:14:04,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 3465 transitions. [2025-02-06 06:14:04,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2025-02-06 06:14:04,730 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:14:04,730 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:14:04,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-06 06:14:04,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-02-06 06:14:04,931 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:14:04,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:14:04,932 INFO L85 PathProgramCache]: Analyzing trace with hash -592344142, now seen corresponding path program 1 times [2025-02-06 06:14:04,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:14:04,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848004307] [2025-02-06 06:14:04,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:04,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:14:05,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 192 statements into 1 equivalence classes. [2025-02-06 06:14:05,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 192 of 192 statements. [2025-02-06 06:14:05,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:05,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-02-06 06:14:05,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:14:05,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848004307] [2025-02-06 06:14:05,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848004307] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:14:05,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56660974] [2025-02-06 06:14:05,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:05,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:14:05,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:14:05,830 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 06:14:05,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 06:14:07,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 192 statements into 1 equivalence classes. [2025-02-06 06:14:07,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 192 of 192 statements. [2025-02-06 06:14:07,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:07,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:07,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 4160 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 06:14:07,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:14:07,624 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-06 06:14:07,624 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 06:14:07,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56660974] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:14:07,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 06:14:07,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 06:14:07,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595553660] [2025-02-06 06:14:07,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:14:07,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 06:14:07,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:14:07,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 06:14:07,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 06:14:07,626 INFO L87 Difference]: Start difference. First operand 2561 states and 3465 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-02-06 06:14:07,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:14:07,910 INFO L93 Difference]: Finished difference Result 5133 states and 7084 transitions. [2025-02-06 06:14:07,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 06:14:07,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 192 [2025-02-06 06:14:07,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:14:07,923 INFO L225 Difference]: With dead ends: 5133 [2025-02-06 06:14:07,923 INFO L226 Difference]: Without dead ends: 2575 [2025-02-06 06:14:07,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 06:14:07,934 INFO L435 NwaCegarLoop]: 737 mSDtfsCounter, 0 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 06:14:07,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2203 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 06:14:07,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2575 states. [2025-02-06 06:14:08,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2575 to 2575. [2025-02-06 06:14:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2575 states, 1840 states have (on average 1.3032608695652175) internal successors, (2398), 1861 states have internal predecessors, (2398), 541 states have call successors, (541), 194 states have call predecessors, (541), 193 states have return successors, (540), 540 states have call predecessors, (540), 540 states have call successors, (540) [2025-02-06 06:14:08,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 3479 transitions. [2025-02-06 06:14:08,023 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 3479 transitions. Word has length 192 [2025-02-06 06:14:08,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:14:08,024 INFO L471 AbstractCegarLoop]: Abstraction has 2575 states and 3479 transitions. [2025-02-06 06:14:08,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-02-06 06:14:08,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 3479 transitions. [2025-02-06 06:14:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2025-02-06 06:14:08,028 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:14:08,028 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:14:08,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-06 06:14:08,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-06 06:14:08,234 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:14:08,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:14:08,235 INFO L85 PathProgramCache]: Analyzing trace with hash 695070164, now seen corresponding path program 1 times [2025-02-06 06:14:08,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:14:08,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805997696] [2025-02-06 06:14:08,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:08,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:14:08,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 194 statements into 1 equivalence classes. [2025-02-06 06:14:08,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 194 of 194 statements. [2025-02-06 06:14:08,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:08,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-06 06:14:09,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:14:09,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805997696] [2025-02-06 06:14:09,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805997696] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:14:09,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018819878] [2025-02-06 06:14:09,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:09,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:14:09,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:14:09,220 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 06:14:09,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 06:14:10,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 194 statements into 1 equivalence classes. [2025-02-06 06:14:10,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 194 of 194 statements. [2025-02-06 06:14:10,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:10,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:10,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 4156 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 06:14:10,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:14:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-06 06:14:10,986 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 06:14:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-06 06:14:11,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018819878] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 06:14:11,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 06:14:11,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-06 06:14:11,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337165418] [2025-02-06 06:14:11,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 06:14:11,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 06:14:11,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:14:11,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 06:14:11,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 06:14:11,468 INFO L87 Difference]: Start difference. First operand 2575 states and 3479 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2025-02-06 06:14:11,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:14:11,818 INFO L93 Difference]: Finished difference Result 5228 states and 7081 transitions. [2025-02-06 06:14:11,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 06:14:11,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 194 [2025-02-06 06:14:11,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:14:11,834 INFO L225 Difference]: With dead ends: 5228 [2025-02-06 06:14:11,834 INFO L226 Difference]: Without dead ends: 2656 [2025-02-06 06:14:11,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 06:14:11,845 INFO L435 NwaCegarLoop]: 734 mSDtfsCounter, 78 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 06:14:11,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2204 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 06:14:11,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2025-02-06 06:14:11,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2656. [2025-02-06 06:14:11,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2656 states, 1921 states have (on average 1.3092139510671525) internal successors, (2515), 1942 states have internal predecessors, (2515), 541 states have call successors, (541), 194 states have call predecessors, (541), 193 states have return successors, (540), 540 states have call predecessors, (540), 540 states have call successors, (540) [2025-02-06 06:14:11,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 3596 transitions. [2025-02-06 06:14:12,000 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 3596 transitions. Word has length 194 [2025-02-06 06:14:12,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:14:12,000 INFO L471 AbstractCegarLoop]: Abstraction has 2656 states and 3596 transitions. [2025-02-06 06:14:12,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2025-02-06 06:14:12,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 3596 transitions. [2025-02-06 06:14:12,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2025-02-06 06:14:12,006 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:14:12,006 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:14:12,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-06 06:14:12,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:14:12,207 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:14:12,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:14:12,208 INFO L85 PathProgramCache]: Analyzing trace with hash 357654501, now seen corresponding path program 2 times [2025-02-06 06:14:12,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:14:12,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609105734] [2025-02-06 06:14:12,208 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 06:14:12,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:14:12,888 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 206 statements into 2 equivalence classes. [2025-02-06 06:14:12,914 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 97 of 206 statements. [2025-02-06 06:14:12,914 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 06:14:12,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2025-02-06 06:14:13,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:14:13,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609105734] [2025-02-06 06:14:13,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609105734] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:14:13,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:14:13,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 06:14:13,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396922798] [2025-02-06 06:14:13,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:14:13,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 06:14:13,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:14:13,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 06:14:13,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:14:13,108 INFO L87 Difference]: Start difference. First operand 2656 states and 3596 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2025-02-06 06:14:13,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:14:13,316 INFO L93 Difference]: Finished difference Result 5337 states and 7339 transitions. [2025-02-06 06:14:13,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 06:14:13,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 206 [2025-02-06 06:14:13,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:14:13,339 INFO L225 Difference]: With dead ends: 5337 [2025-02-06 06:14:13,339 INFO L226 Difference]: Without dead ends: 2684 [2025-02-06 06:14:13,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:14:13,347 INFO L435 NwaCegarLoop]: 737 mSDtfsCounter, 0 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:14:13,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2944 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 06:14:13,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2025-02-06 06:14:13,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 2684. [2025-02-06 06:14:13,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2684 states, 1942 states have (on average 1.305870236869207) internal successors, (2536), 1963 states have internal predecessors, (2536), 541 states have call successors, (541), 194 states have call predecessors, (541), 200 states have return successors, (568), 547 states have call predecessors, (568), 540 states have call successors, (568) [2025-02-06 06:14:13,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2684 states to 2684 states and 3645 transitions. [2025-02-06 06:14:13,441 INFO L78 Accepts]: Start accepts. Automaton has 2684 states and 3645 transitions. Word has length 206 [2025-02-06 06:14:13,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:14:13,442 INFO L471 AbstractCegarLoop]: Abstraction has 2684 states and 3645 transitions. [2025-02-06 06:14:13,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2025-02-06 06:14:13,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2684 states and 3645 transitions. [2025-02-06 06:14:13,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2025-02-06 06:14:13,447 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:14:13,447 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:14:13,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 06:14:13,448 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:14:13,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:14:13,448 INFO L85 PathProgramCache]: Analyzing trace with hash 980162691, now seen corresponding path program 1 times [2025-02-06 06:14:13,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:14:13,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040256617] [2025-02-06 06:14:13,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:13,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:14:14,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 272 statements into 1 equivalence classes. [2025-02-06 06:14:14,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 272 of 272 statements. [2025-02-06 06:14:14,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:14,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:14,331 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2025-02-06 06:14:14,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:14:14,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040256617] [2025-02-06 06:14:14,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040256617] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:14:14,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:14:14,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 06:14:14,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938192066] [2025-02-06 06:14:14,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:14:14,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 06:14:14,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:14:14,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 06:14:14,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 06:14:14,334 INFO L87 Difference]: Start difference. First operand 2684 states and 3645 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-06 06:14:14,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:14:14,516 INFO L93 Difference]: Finished difference Result 5371 states and 7296 transitions. [2025-02-06 06:14:14,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 06:14:14,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 272 [2025-02-06 06:14:14,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:14:14,530 INFO L225 Difference]: With dead ends: 5371 [2025-02-06 06:14:14,530 INFO L226 Difference]: Without dead ends: 2690 [2025-02-06 06:14:14,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 06:14:14,539 INFO L435 NwaCegarLoop]: 737 mSDtfsCounter, 0 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:14:14,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2205 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 06:14:14,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2025-02-06 06:14:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2690. [2025-02-06 06:14:14,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2690 states, 1948 states have (on average 1.3049281314168377) internal successors, (2542), 1969 states have internal predecessors, (2542), 541 states have call successors, (541), 194 states have call predecessors, (541), 200 states have return successors, (568), 547 states have call predecessors, (568), 540 states have call successors, (568) [2025-02-06 06:14:14,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 3651 transitions. [2025-02-06 06:14:14,698 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 3651 transitions. Word has length 272 [2025-02-06 06:14:14,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:14:14,699 INFO L471 AbstractCegarLoop]: Abstraction has 2690 states and 3651 transitions. [2025-02-06 06:14:14,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-06 06:14:14,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 3651 transitions. [2025-02-06 06:14:14,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2025-02-06 06:14:14,708 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:14:14,708 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:14:14,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-06 06:14:14,708 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:14:14,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:14:14,709 INFO L85 PathProgramCache]: Analyzing trace with hash 178449041, now seen corresponding path program 1 times [2025-02-06 06:14:14,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:14:14,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330902056] [2025-02-06 06:14:14,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:14,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:14:15,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 275 statements into 1 equivalence classes. [2025-02-06 06:14:15,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 275 of 275 statements. [2025-02-06 06:14:15,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:15,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2025-02-06 06:14:15,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:14:15,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330902056] [2025-02-06 06:14:15,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330902056] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:14:15,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988684631] [2025-02-06 06:14:15,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:15,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:14:15,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:14:15,872 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 06:14:15,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 06:14:17,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 275 statements into 1 equivalence classes. [2025-02-06 06:14:17,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 275 of 275 statements. [2025-02-06 06:14:17,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:17,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:17,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 4526 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 06:14:17,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:14:17,787 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2025-02-06 06:14:17,787 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 06:14:17,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988684631] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:14:17,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 06:14:17,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 06:14:17,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426731307] [2025-02-06 06:14:17,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:14:17,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 06:14:17,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:14:17,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 06:14:17,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 06:14:17,789 INFO L87 Difference]: Start difference. First operand 2690 states and 3651 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2025-02-06 06:14:18,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:14:18,062 INFO L93 Difference]: Finished difference Result 5433 states and 7526 transitions. [2025-02-06 06:14:18,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 06:14:18,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 275 [2025-02-06 06:14:18,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:14:18,076 INFO L225 Difference]: With dead ends: 5433 [2025-02-06 06:14:18,077 INFO L226 Difference]: Without dead ends: 2746 [2025-02-06 06:14:18,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 06:14:18,084 INFO L435 NwaCegarLoop]: 739 mSDtfsCounter, 0 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 06:14:18,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2210 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 06:14:18,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2025-02-06 06:14:18,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2746. [2025-02-06 06:14:18,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2746 states, 1983 states have (on average 1.303076147251639) internal successors, (2584), 2004 states have internal predecessors, (2584), 562 states have call successors, (562), 194 states have call predecessors, (562), 200 states have return successors, (589), 568 states have call predecessors, (589), 561 states have call successors, (589) [2025-02-06 06:14:18,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2746 states to 2746 states and 3735 transitions. [2025-02-06 06:14:18,182 INFO L78 Accepts]: Start accepts. Automaton has 2746 states and 3735 transitions. Word has length 275 [2025-02-06 06:14:18,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:14:18,183 INFO L471 AbstractCegarLoop]: Abstraction has 2746 states and 3735 transitions. [2025-02-06 06:14:18,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2025-02-06 06:14:18,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2746 states and 3735 transitions. [2025-02-06 06:14:18,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2025-02-06 06:14:18,188 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:14:18,188 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:14:18,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-06 06:14:18,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:14:18,388 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:14:18,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:14:18,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1609988901, now seen corresponding path program 1 times [2025-02-06 06:14:18,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:14:18,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850989598] [2025-02-06 06:14:18,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:18,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:14:19,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 277 statements into 1 equivalence classes. [2025-02-06 06:14:19,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 277 of 277 statements. [2025-02-06 06:14:19,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:19,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2025-02-06 06:14:19,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:14:19,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850989598] [2025-02-06 06:14:19,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850989598] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 06:14:19,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992260742] [2025-02-06 06:14:19,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:19,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:14:19,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:14:19,321 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 06:14:19,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-06 06:14:20,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 277 statements into 1 equivalence classes. [2025-02-06 06:14:21,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 277 of 277 statements. [2025-02-06 06:14:21,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:21,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:21,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 4532 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 06:14:21,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 06:14:21,368 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2025-02-06 06:14:21,368 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 06:14:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2025-02-06 06:14:22,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992260742] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 06:14:22,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 06:14:22,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-06 06:14:22,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11484229] [2025-02-06 06:14:22,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 06:14:22,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 06:14:22,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:14:22,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 06:14:22,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 06:14:22,748 INFO L87 Difference]: Start difference. First operand 2746 states and 3735 transitions. Second operand has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 5 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) [2025-02-06 06:14:23,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:14:23,183 INFO L93 Difference]: Finished difference Result 5756 states and 7890 transitions. [2025-02-06 06:14:23,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 06:14:23,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 5 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) Word has length 277 [2025-02-06 06:14:23,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:14:23,200 INFO L225 Difference]: With dead ends: 5756 [2025-02-06 06:14:23,200 INFO L226 Difference]: Without dead ends: 3013 [2025-02-06 06:14:23,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 06:14:23,211 INFO L435 NwaCegarLoop]: 744 mSDtfsCounter, 85 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 06:14:23,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 2922 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 06:14:23,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3013 states. [2025-02-06 06:14:23,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3013 to 3013. [2025-02-06 06:14:23,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 2181 states have (on average 1.3030719853278312) internal successors, (2842), 2202 states have internal predecessors, (2842), 631 states have call successors, (631), 194 states have call predecessors, (631), 200 states have return successors, (658), 637 states have call predecessors, (658), 630 states have call successors, (658) [2025-02-06 06:14:23,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4131 transitions. [2025-02-06 06:14:23,374 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4131 transitions. Word has length 277 [2025-02-06 06:14:23,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:14:23,375 INFO L471 AbstractCegarLoop]: Abstraction has 3013 states and 4131 transitions. [2025-02-06 06:14:23,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 5 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) [2025-02-06 06:14:23,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4131 transitions. [2025-02-06 06:14:23,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2025-02-06 06:14:23,383 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:14:23,383 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:14:23,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-06 06:14:23,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 06:14:23,585 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:14:23,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:14:23,585 INFO L85 PathProgramCache]: Analyzing trace with hash 801604028, now seen corresponding path program 1 times [2025-02-06 06:14:23,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:14:23,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604822966] [2025-02-06 06:14:23,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:14:23,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:14:24,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 278 statements into 1 equivalence classes. [2025-02-06 06:14:24,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 278 of 278 statements. [2025-02-06 06:14:24,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:14:24,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:24,871 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2025-02-06 06:14:24,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:14:24,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604822966] [2025-02-06 06:14:24,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604822966] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:14:24,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:14:24,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 06:14:24,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053660832] [2025-02-06 06:14:24,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:14:24,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 06:14:24,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:14:24,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 06:14:24,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:14:24,872 INFO L87 Difference]: Start difference. First operand 3013 states and 4131 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-06 06:14:25,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:14:25,224 INFO L93 Difference]: Finished difference Result 6038 states and 8301 transitions. [2025-02-06 06:14:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 06:14:25,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 278 [2025-02-06 06:14:25,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:14:25,240 INFO L225 Difference]: With dead ends: 6038 [2025-02-06 06:14:25,240 INFO L226 Difference]: Without dead ends: 3028 [2025-02-06 06:14:25,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:14:25,248 INFO L435 NwaCegarLoop]: 736 mSDtfsCounter, 1 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 06:14:25,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2932 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 06:14:25,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2025-02-06 06:14:25,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 3028. [2025-02-06 06:14:25,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3028 states, 2193 states have (on average 1.3014135886912905) internal successors, (2854), 2214 states have internal predecessors, (2854), 631 states have call successors, (631), 194 states have call predecessors, (631), 203 states have return successors, (682), 640 states have call predecessors, (682), 630 states have call successors, (682) [2025-02-06 06:14:25,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 4167 transitions. [2025-02-06 06:14:25,357 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 4167 transitions. Word has length 278 [2025-02-06 06:14:25,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:14:25,358 INFO L471 AbstractCegarLoop]: Abstraction has 3028 states and 4167 transitions. [2025-02-06 06:14:25,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-06 06:14:25,358 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 4167 transitions. [2025-02-06 06:14:25,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2025-02-06 06:14:25,362 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:14:25,362 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:14:25,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-06 06:14:25,363 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:14:25,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:14:25,363 INFO L85 PathProgramCache]: Analyzing trace with hash 748963391, now seen corresponding path program 2 times [2025-02-06 06:14:25,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:14:25,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200612318] [2025-02-06 06:14:25,363 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 06:14:25,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:14:25,979 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 298 statements into 2 equivalence classes. [2025-02-06 06:14:26,008 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 92 of 298 statements. [2025-02-06 06:14:26,008 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 06:14:26,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:14:26,270 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-02-06 06:14:26,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:14:26,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200612318] [2025-02-06 06:14:26,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200612318] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:14:26,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:14:26,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 06:14:26,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285150978] [2025-02-06 06:14:26,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:14:26,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:14:26,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:14:26,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:14:26,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:14:26,272 INFO L87 Difference]: Start difference. First operand 3028 states and 4167 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-02-06 06:14:30,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 06:14:30,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:14:30,475 INFO L93 Difference]: Finished difference Result 3028 states and 4167 transitions. [2025-02-06 06:14:30,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:14:30,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 298 [2025-02-06 06:14:30,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:14:30,480 INFO L225 Difference]: With dead ends: 3028 [2025-02-06 06:14:30,481 INFO L226 Difference]: Without dead ends: 0 [2025-02-06 06:14:30,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:14:30,486 INFO L435 NwaCegarLoop]: 767 mSDtfsCounter, 384 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-02-06 06:14:30,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1436 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2025-02-06 06:14:30,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-06 06:14:30,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-06 06:14:30,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 06:14:30,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 06:14:30,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 298 [2025-02-06 06:14:30,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:14:30,488 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 06:14:30,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-02-06 06:14:30,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-06 06:14:30,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-06 06:14:30,490 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-06 06:14:30,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-06 06:14:30,493 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:14:30,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.