./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.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 230b725329634d718374ec3f6d82161758e5d9913588383fdc3e35a9fd1533f5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 07:14:33,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 07:14:33,448 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 07:14:33,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 07:14:33,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 07:14:33,472 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 07:14:33,473 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 07:14:33,473 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 07:14:33,474 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 07:14:33,474 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 07:14:33,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 07:14:33,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 07:14:33,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 07:14:33,474 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 07:14:33,474 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 07:14:33,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 07:14:33,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 07:14:33,475 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 07:14:33,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 07:14:33,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 07:14:33,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 07:14:33,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 07:14:33,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 07:14:33,475 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 07:14:33,475 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 07:14:33,476 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 07:14:33,476 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 07:14:33,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 07:14:33,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 07:14:33,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 07:14:33,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 07:14:33,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 07:14:33,476 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 07:14:33,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 07:14:33,476 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 07:14:33,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 07:14:33,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 07:14:33,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 07:14:33,476 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 07:14:33,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 07:14:33,477 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 -> 230b725329634d718374ec3f6d82161758e5d9913588383fdc3e35a9fd1533f5 [2025-02-06 07:14:33,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 07:14:33,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 07:14:33,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 07:14:33,774 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 07:14:33,774 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 07:14:33,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i [2025-02-06 07:14:35,000 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a6259134/00e181f047624ec6823b81d42759dc53/FLAGf89020b13 [2025-02-06 07:14:35,467 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 07:14:35,468 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i [2025-02-06 07:14:35,499 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a6259134/00e181f047624ec6823b81d42759dc53/FLAGf89020b13 [2025-02-06 07:14:35,515 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a6259134/00e181f047624ec6823b81d42759dc53 [2025-02-06 07:14:35,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 07:14:35,518 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 07:14:35,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 07:14:35,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 07:14:35,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 07:14:35,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:14:35" (1/1) ... [2025-02-06 07:14:35,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184e772e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:35, skipping insertion in model container [2025-02-06 07:14:35,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:14:35" (1/1) ... [2025-02-06 07:14:35,590 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 07:14:36,376 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i[164687,164700] [2025-02-06 07:14:36,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 07:14:36,436 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 07:14:36,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [4273-4274] [2025-02-06 07:14:36,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [4285-4286] [2025-02-06 07:14:36,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [4289-4290] [2025-02-06 07:14:36,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [4293-4294] [2025-02-06 07:14:36,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [4297-4298] [2025-02-06 07:14:36,608 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i[164687,164700] [2025-02-06 07:14:36,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 07:14:36,635 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: __xadd_wrong_size [2025-02-06 07:14:36,640 INFO L204 MainTranslator]: Completed translation [2025-02-06 07:14:36,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36 WrapperNode [2025-02-06 07:14:36,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 07:14:36,642 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 07:14:36,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 07:14:36,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 07:14:36,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (1/1) ... [2025-02-06 07:14:36,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (1/1) ... [2025-02-06 07:14:36,723 INFO L138 Inliner]: procedures = 147, calls = 882, calls flagged for inlining = 62, calls inlined = 60, statements flattened = 2112 [2025-02-06 07:14:36,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 07:14:36,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 07:14:36,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 07:14:36,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 07:14:36,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (1/1) ... [2025-02-06 07:14:36,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (1/1) ... [2025-02-06 07:14:36,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (1/1) ... [2025-02-06 07:14:36,966 INFO L175 MemorySlicer]: Split 543 memory accesses to 16 slices as follows [2, 182, 14, 14, 5, 3, 2, 16, 4, 3, 8, 2, 56, 12, 218, 2]. 40 percent of accesses are in the largest equivalence class. The 258 initializations are split as follows [2, 182, 14, 14, 5, 3, 0, 16, 3, 2, 0, 0, 0, 0, 17, 0]. The 146 writes are split as follows [0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 51, 12, 81, 1]. [2025-02-06 07:14:36,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (1/1) ... [2025-02-06 07:14:36,969 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (1/1) ... [2025-02-06 07:14:37,039 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (1/1) ... [2025-02-06 07:14:37,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (1/1) ... [2025-02-06 07:14:37,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (1/1) ... [2025-02-06 07:14:37,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (1/1) ... [2025-02-06 07:14:37,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 07:14:37,112 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 07:14:37,113 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 07:14:37,113 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 07:14:37,114 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (1/1) ... [2025-02-06 07:14:37,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 07:14:37,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:14:37,142 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 07:14:37,146 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 07:14:37,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 07:14:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 07:14:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 07:14:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 07:14:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 07:14:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 07:14:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 07:14:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2025-02-06 07:14:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2025-02-06 07:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2025-02-06 07:14:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 07:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 07:14:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 07:14:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 07:14:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 07:14:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-06 07:14:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-02-06 07:14:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2025-02-06 07:14:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2025-02-06 07:14:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#15 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#15 [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure get_rdac_data [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rdac_data [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure blk_put_request [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_put_request [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2025-02-06 07:14:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 07:14:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2025-02-06 07:14:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure send_mode_select [2025-02-06 07:14:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure send_mode_select [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2025-02-06 07:14:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2025-02-06 07:14:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 07:14:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 07:14:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-06 07:14:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-02-06 07:14:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-02-06 07:14:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-02-06 07:14:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-02-06 07:14:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unregister_device_handler [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unregister_device_handler [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure submit_inquiry [2025-02-06 07:14:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_inquiry [2025-02-06 07:14:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure rdac_bus_detach [2025-02-06 07:14:37,181 INFO L138 BoogieDeclarations]: Found implementation of procedure rdac_bus_detach [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure rdac_match [2025-02-06 07:14:37,181 INFO L138 BoogieDeclarations]: Found implementation of procedure rdac_match [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2025-02-06 07:14:37,181 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2025-02-06 07:14:37,181 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-02-06 07:14:37,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_prefix_printk [2025-02-06 07:14:37,181 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_prefix_printk [2025-02-06 07:14:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 07:14:37,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2025-02-06 07:14:37,185 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2025-02-06 07:14:37,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure check_ownership [2025-02-06 07:14:37,185 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ownership [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2025-02-06 07:14:37,185 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2025-02-06 07:14:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure get_rdac_req [2025-02-06 07:14:37,186 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rdac_req [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2025-02-06 07:14:37,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2025-02-06 07:14:37,186 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2025-02-06 07:14:37,186 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2025-02-06 07:14:37,186 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2025-02-06 07:14:37,186 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2025-02-06 07:14:37,186 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2025-02-06 07:14:37,186 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2025-02-06 07:14:37,186 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2025-02-06 07:14:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2025-02-06 07:14:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2025-02-06 07:14:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2025-02-06 07:14:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2025-02-06 07:14:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2025-02-06 07:14:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2025-02-06 07:14:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2025-02-06 07:14:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2025-02-06 07:14:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2025-02-06 07:14:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2025-02-06 07:14:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2025-02-06 07:14:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2025-02-06 07:14:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2025-02-06 07:14:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2025-02-06 07:14:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2025-02-06 07:14:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 07:14:37,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 07:14:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2025-02-06 07:14:37,189 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2025-02-06 07:14:37,675 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 07:14:37,678 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 07:14:38,091 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2025-02-06 07:14:38,263 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4222: havoc list_empty_#t~mem24#1.base, list_empty_#t~mem24#1.offset; [2025-02-06 07:14:38,263 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5935: havoc scsi_normalize_sense_#t~nondet371#1; [2025-02-06 07:14:38,263 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4880: call ULTIMATE.dealloc(~#list~0#1.base, ~#list~0#1.offset);havoc ~#list~0#1.base, ~#list~0#1.offset; [2025-02-06 07:14:38,263 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4816: call ULTIMATE.dealloc(mode_select_handle_sense_~#sense_hdr~0#1.base, mode_select_handle_sense_~#sense_hdr~0#1.offset);havoc mode_select_handle_sense_~#sense_hdr~0#1.base, mode_select_handle_sense_~#sense_hdr~0#1.offset; [2025-02-06 07:14:38,732 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4474: havoc scsi_device_tpgs_#t~mem105#1.base, scsi_device_tpgs_#t~mem105#1.offset;havoc scsi_device_tpgs_#t~ite108#1;havoc scsi_device_tpgs_#t~mem106#1.base, scsi_device_tpgs_#t~mem106#1.offset;havoc scsi_device_tpgs_#t~mem107#1; [2025-02-06 07:14:38,739 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5885: havoc #t~nondet364; [2025-02-06 07:14:38,790 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5888: havoc blk_get_request_#t~ret365#1.base, blk_get_request_#t~ret365#1.offset; [2025-02-06 07:14:38,790 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5895: havoc blk_rq_map_kern_#t~nondet366#1; [2025-02-06 07:14:38,792 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5923: havoc #t~nondet368; [2025-02-06 07:14:38,796 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5931: havoc #t~nondet370; [2025-02-06 07:14:38,897 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5943: havoc #t~nondet373; [2025-02-06 07:14:43,531 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5189: call ULTIMATE.dealloc(rdac_bus_attach_~#array_name~0#1.base, rdac_bus_attach_~#array_name~0#1.offset);havoc rdac_bus_attach_~#array_name~0#1.base, rdac_bus_attach_~#array_name~0#1.offset;call ULTIMATE.dealloc(rdac_bus_attach_~#array_id~0#1.base, rdac_bus_attach_~#array_id~0#1.offset);havoc rdac_bus_attach_~#array_id~0#1.base, rdac_bus_attach_~#array_id~0#1.offset; [2025-02-06 07:14:43,532 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5265: call ULTIMATE.dealloc(rdac_init_~#__key~1#1.base, rdac_init_~#__key~1#1.offset);havoc rdac_init_~#__key~1#1.base, rdac_init_~#__key~1#1.offset; [2025-02-06 07:14:43,532 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: havoc __alloc_workqueue_key_#t~ret363#1.base, __alloc_workqueue_key_#t~ret363#1.offset; [2025-02-06 07:14:43,532 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5472: call ULTIMATE.dealloc(main_~#ldvarg3~0#1.base, main_~#ldvarg3~0#1.offset);havoc main_~#ldvarg3~0#1.base, main_~#ldvarg3~0#1.offset; [2025-02-06 07:14:43,532 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4615: call ULTIMATE.dealloc(get_controller_~#__key~0#1.base, get_controller_~#__key~0#1.offset);havoc get_controller_~#__key~0#1.base, get_controller_~#__key~0#1.offset;call ULTIMATE.dealloc(get_controller_~#__key___0~0#1.base, get_controller_~#__key___0~0#1.offset);havoc get_controller_~#__key___0~0#1.base, get_controller_~#__key___0~0#1.offset;call ULTIMATE.dealloc(get_controller_~#__constr_expr_0~0#1.base, get_controller_~#__constr_expr_0~0#1.offset);havoc get_controller_~#__constr_expr_0~0#1.base, get_controller_~#__constr_expr_0~0#1.offset; [2025-02-06 07:14:43,532 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L5939: havoc scsi_register_device_handler_#t~nondet372#1; [2025-02-06 07:14:43,839 INFO L? ?]: Removed 1138 outVars from TransFormulas that were not future-live. [2025-02-06 07:14:43,839 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 07:14:43,871 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 07:14:43,871 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 07:14:43,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:14:43 BoogieIcfgContainer [2025-02-06 07:14:43,872 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 07:14:43,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 07:14:43,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 07:14:43,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 07:14:43,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 07:14:35" (1/3) ... [2025-02-06 07:14:43,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbb7566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 07:14:43, skipping insertion in model container [2025-02-06 07:14:43,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:14:36" (2/3) ... [2025-02-06 07:14:43,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbb7566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 07:14:43, skipping insertion in model container [2025-02-06 07:14:43,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:14:43" (3/3) ... [2025-02-06 07:14:43,881 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i [2025-02-06 07:14:43,891 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 07:14:43,892 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i that has 72 procedures, 768 locations, 1 initial locations, 49 loop locations, and 2 error locations. [2025-02-06 07:14:43,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 07:14:43,969 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;@32f71e57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 07:14:43,969 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 07:14:43,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 638 states, 467 states have (on average 1.3875802997858673) internal successors, (648), 490 states have internal predecessors, (648), 125 states have call successors, (125), 42 states have call predecessors, (125), 41 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2025-02-06 07:14:43,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-06 07:14:43,981 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:14:43,981 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:14:43,982 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:14:43,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:14:43,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1317974735, now seen corresponding path program 1 times [2025-02-06 07:14:43,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:14:43,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651438143] [2025-02-06 07:14:43,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:43,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:14:44,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 07:14:44,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 07:14:44,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:44,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-02-06 07:14:44,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:14:44,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651438143] [2025-02-06 07:14:44,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651438143] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 07:14:44,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399772042] [2025-02-06 07:14:44,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:44,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:14:44,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:14:44,959 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 07:14:44,960 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 07:14:45,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 07:14:46,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 07:14:46,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:46,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:46,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 07:14:46,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 07:14:46,046 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 07:14:46,047 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 07:14:46,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399772042] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:14:46,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 07:14:46,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 07:14:46,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593812453] [2025-02-06 07:14:46,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:14:46,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 07:14:46,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:14:46,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 07:14:46,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 07:14:46,069 INFO L87 Difference]: Start difference. First operand has 638 states, 467 states have (on average 1.3875802997858673) internal successors, (648), 490 states have internal predecessors, (648), 125 states have call successors, (125), 42 states have call predecessors, (125), 41 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-06 07:14:46,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:14:46,154 INFO L93 Difference]: Finished difference Result 1270 states and 1824 transitions. [2025-02-06 07:14:46,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 07:14:46,155 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2025-02-06 07:14:46,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:14:46,172 INFO L225 Difference]: With dead ends: 1270 [2025-02-06 07:14:46,172 INFO L226 Difference]: Without dead ends: 616 [2025-02-06 07:14:46,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 07:14:46,184 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:14:46,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 882 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:14:46,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2025-02-06 07:14:46,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2025-02-06 07:14:46,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 455 states have (on average 1.367032967032967) internal successors, (622), 470 states have internal predecessors, (622), 119 states have call successors, (119), 41 states have call predecessors, (119), 40 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2025-02-06 07:14:46,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 859 transitions. [2025-02-06 07:14:46,251 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 859 transitions. Word has length 74 [2025-02-06 07:14:46,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:14:46,251 INFO L471 AbstractCegarLoop]: Abstraction has 616 states and 859 transitions. [2025-02-06 07:14:46,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-06 07:14:46,251 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 859 transitions. [2025-02-06 07:14:46,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-06 07:14:46,253 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:14:46,254 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:14:46,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 07:14:46,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 07:14:46,458 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:14:46,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:14:46,459 INFO L85 PathProgramCache]: Analyzing trace with hash 795066356, now seen corresponding path program 1 times [2025-02-06 07:14:46,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:14:46,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465922267] [2025-02-06 07:14:46,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:46,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:14:46,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 07:14:46,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 07:14:46,917 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:46,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:47,066 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-02-06 07:14:47,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:14:47,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465922267] [2025-02-06 07:14:47,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465922267] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:14:47,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 07:14:47,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 07:14:47,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238475062] [2025-02-06 07:14:47,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:14:47,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 07:14:47,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:14:47,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 07:14:47,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 07:14:47,068 INFO L87 Difference]: Start difference. First operand 616 states and 859 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-06 07:14:47,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:14:47,246 INFO L93 Difference]: Finished difference Result 1450 states and 2000 transitions. [2025-02-06 07:14:47,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 07:14:47,249 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), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 74 [2025-02-06 07:14:47,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:14:47,258 INFO L225 Difference]: With dead ends: 1450 [2025-02-06 07:14:47,258 INFO L226 Difference]: Without dead ends: 850 [2025-02-06 07:14:47,261 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 07:14:47,262 INFO L435 NwaCegarLoop]: 860 mSDtfsCounter, 319 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 07:14:47,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1667 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 07:14:47,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2025-02-06 07:14:47,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 845. [2025-02-06 07:14:47,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 626 states have (on average 1.3482428115015974) internal successors, (844), 643 states have internal predecessors, (844), 156 states have call successors, (156), 62 states have call predecessors, (156), 61 states have return successors, (155), 154 states have call predecessors, (155), 155 states have call successors, (155) [2025-02-06 07:14:47,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1155 transitions. [2025-02-06 07:14:47,320 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1155 transitions. Word has length 74 [2025-02-06 07:14:47,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:14:47,321 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1155 transitions. [2025-02-06 07:14:47,321 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), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-06 07:14:47,321 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1155 transitions. [2025-02-06 07:14:47,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-02-06 07:14:47,325 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:14:47,325 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2025-02-06 07:14:47,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 07:14:47,325 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:14:47,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:14:47,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1938921369, now seen corresponding path program 1 times [2025-02-06 07:14:47,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:14:47,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086447069] [2025-02-06 07:14:47,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:47,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:14:47,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-02-06 07:14:47,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-02-06 07:14:47,866 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:47,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-02-06 07:14:48,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:14:48,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086447069] [2025-02-06 07:14:48,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086447069] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:14:48,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 07:14:48,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 07:14:48,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673555522] [2025-02-06 07:14:48,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:14:48,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 07:14:48,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:14:48,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 07:14:48,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 07:14:48,241 INFO L87 Difference]: Start difference. First operand 845 states and 1155 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-02-06 07:14:48,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:14:48,346 INFO L93 Difference]: Finished difference Result 1668 states and 2285 transitions. [2025-02-06 07:14:48,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 07:14:48,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 112 [2025-02-06 07:14:48,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:14:48,354 INFO L225 Difference]: With dead ends: 1668 [2025-02-06 07:14:48,355 INFO L226 Difference]: Without dead ends: 850 [2025-02-06 07:14:48,358 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 07:14:48,360 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 6 mSDsluCounter, 2540 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3396 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:14:48,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3396 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:14:48,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2025-02-06 07:14:48,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 848. [2025-02-06 07:14:48,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 629 states have (on average 1.3465818759936408) internal successors, (847), 646 states have internal predecessors, (847), 156 states have call successors, (156), 62 states have call predecessors, (156), 61 states have return successors, (155), 154 states have call predecessors, (155), 155 states have call successors, (155) [2025-02-06 07:14:48,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1158 transitions. [2025-02-06 07:14:48,416 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1158 transitions. Word has length 112 [2025-02-06 07:14:48,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:14:48,416 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1158 transitions. [2025-02-06 07:14:48,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-02-06 07:14:48,417 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1158 transitions. [2025-02-06 07:14:48,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-02-06 07:14:48,420 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:14:48,424 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2025-02-06 07:14:48,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 07:14:48,424 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:14:48,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:14:48,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1640654332, now seen corresponding path program 1 times [2025-02-06 07:14:48,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:14:48,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330444415] [2025-02-06 07:14:48,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:48,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:14:48,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-02-06 07:14:48,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-02-06 07:14:48,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:48,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:48,998 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-02-06 07:14:48,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:14:48,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330444415] [2025-02-06 07:14:48,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330444415] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:14:48,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 07:14:48,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 07:14:48,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372733706] [2025-02-06 07:14:48,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:14:48,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 07:14:49,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:14:49,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 07:14:49,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 07:14:49,000 INFO L87 Difference]: Start difference. First operand 848 states and 1158 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2025-02-06 07:14:49,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:14:49,028 INFO L93 Difference]: Finished difference Result 852 states and 1162 transitions. [2025-02-06 07:14:49,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 07:14:49,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 115 [2025-02-06 07:14:49,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:14:49,033 INFO L225 Difference]: With dead ends: 852 [2025-02-06 07:14:49,033 INFO L226 Difference]: Without dead ends: 849 [2025-02-06 07:14:49,033 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 07:14:49,034 INFO L435 NwaCegarLoop]: 855 mSDtfsCounter, 0 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:14:49,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1704 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:14:49,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2025-02-06 07:14:49,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 849. [2025-02-06 07:14:49,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 630 states have (on average 1.3460317460317461) internal successors, (848), 647 states have internal predecessors, (848), 156 states have call successors, (156), 62 states have call predecessors, (156), 61 states have return successors, (155), 154 states have call predecessors, (155), 155 states have call successors, (155) [2025-02-06 07:14:49,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1159 transitions. [2025-02-06 07:14:49,058 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1159 transitions. Word has length 115 [2025-02-06 07:14:49,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:14:49,058 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1159 transitions. [2025-02-06 07:14:49,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2025-02-06 07:14:49,058 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1159 transitions. [2025-02-06 07:14:49,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-02-06 07:14:49,060 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:14:49,060 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2025-02-06 07:14:49,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 07:14:49,060 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:14:49,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:14:49,060 INFO L85 PathProgramCache]: Analyzing trace with hash 365636574, now seen corresponding path program 1 times [2025-02-06 07:14:49,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:14:49,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107475773] [2025-02-06 07:14:49,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:49,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:14:49,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-02-06 07:14:49,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-02-06 07:14:49,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:49,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:49,625 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-02-06 07:14:49,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:14:49,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107475773] [2025-02-06 07:14:49,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107475773] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:14:49,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 07:14:49,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 07:14:49,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117129778] [2025-02-06 07:14:49,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:14:49,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 07:14:49,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:14:49,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 07:14:49,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 07:14:49,626 INFO L87 Difference]: Start difference. First operand 849 states and 1159 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-06 07:14:49,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:14:49,683 INFO L93 Difference]: Finished difference Result 1768 states and 2414 transitions. [2025-02-06 07:14:49,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 07:14:49,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 117 [2025-02-06 07:14:49,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:14:49,689 INFO L225 Difference]: With dead ends: 1768 [2025-02-06 07:14:49,689 INFO L226 Difference]: Without dead ends: 946 [2025-02-06 07:14:49,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 07:14:49,692 INFO L435 NwaCegarLoop]: 865 mSDtfsCounter, 649 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:14:49,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 2007 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:14:49,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2025-02-06 07:14:49,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 928. [2025-02-06 07:14:49,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 679 states have (on average 1.3402061855670102) internal successors, (910), 704 states have internal predecessors, (910), 173 states have call successors, (173), 77 states have call predecessors, (173), 74 states have return successors, (177), 165 states have call predecessors, (177), 172 states have call successors, (177) [2025-02-06 07:14:49,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1260 transitions. [2025-02-06 07:14:49,721 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1260 transitions. Word has length 117 [2025-02-06 07:14:49,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:14:49,721 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1260 transitions. [2025-02-06 07:14:49,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-06 07:14:49,721 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1260 transitions. [2025-02-06 07:14:49,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-02-06 07:14:49,726 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:14:49,726 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:14:49,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 07:14:49,727 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:14:49,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:14:49,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1107932217, now seen corresponding path program 1 times [2025-02-06 07:14:49,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:14:49,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13778978] [2025-02-06 07:14:49,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:49,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:14:50,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-02-06 07:14:50,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-02-06 07:14:50,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:50,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:50,418 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2025-02-06 07:14:50,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:14:50,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13778978] [2025-02-06 07:14:50,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13778978] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 07:14:50,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063167568] [2025-02-06 07:14:50,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:50,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:14:50,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:14:50,422 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 07:14:50,425 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 07:14:51,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-02-06 07:14:51,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-02-06 07:14:51,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:51,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:51,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 2775 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 07:14:51,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 07:14:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-02-06 07:14:51,721 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 07:14:51,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063167568] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:14:51,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 07:14:51,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-02-06 07:14:51,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943988146] [2025-02-06 07:14:51,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:14:51,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 07:14:51,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:14:51,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 07:14:51,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-06 07:14:51,723 INFO L87 Difference]: Start difference. First operand 928 states and 1260 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-06 07:14:51,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:14:51,789 INFO L93 Difference]: Finished difference Result 1835 states and 2499 transitions. [2025-02-06 07:14:51,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 07:14:51,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 217 [2025-02-06 07:14:51,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:14:51,795 INFO L225 Difference]: With dead ends: 1835 [2025-02-06 07:14:51,795 INFO L226 Difference]: Without dead ends: 934 [2025-02-06 07:14:51,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-06 07:14:51,799 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 3 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:14:51,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4244 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:14:51,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2025-02-06 07:14:51,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 933. [2025-02-06 07:14:51,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 683 states have (on average 1.3382137628111275) internal successors, (914), 707 states have internal predecessors, (914), 173 states have call successors, (173), 77 states have call predecessors, (173), 75 states have return successors, (181), 166 states have call predecessors, (181), 172 states have call successors, (181) [2025-02-06 07:14:51,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1268 transitions. [2025-02-06 07:14:51,826 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1268 transitions. Word has length 217 [2025-02-06 07:14:51,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:14:51,826 INFO L471 AbstractCegarLoop]: Abstraction has 933 states and 1268 transitions. [2025-02-06 07:14:51,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-06 07:14:51,827 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1268 transitions. [2025-02-06 07:14:51,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-02-06 07:14:51,830 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:14:51,830 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:14:51,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 07:14:52,031 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 07:14:52,031 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:14:52,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:14:52,032 INFO L85 PathProgramCache]: Analyzing trace with hash -665200579, now seen corresponding path program 1 times [2025-02-06 07:14:52,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:14:52,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286564873] [2025-02-06 07:14:52,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:52,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:14:52,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-02-06 07:14:52,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-02-06 07:14:52,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:52,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:52,749 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2025-02-06 07:14:52,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:14:52,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286564873] [2025-02-06 07:14:52,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286564873] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 07:14:52,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214861042] [2025-02-06 07:14:52,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:52,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:14:52,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:14:52,754 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 07:14:52,755 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 07:14:53,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-02-06 07:14:53,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-02-06 07:14:53,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:53,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:53,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 2767 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 07:14:53,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 07:14:53,896 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-02-06 07:14:53,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 07:14:53,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214861042] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:14:53,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 07:14:53,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2025-02-06 07:14:53,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638880738] [2025-02-06 07:14:53,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:14:53,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 07:14:53,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:14:53,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 07:14:53,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-02-06 07:14:53,898 INFO L87 Difference]: Start difference. First operand 933 states and 1268 transitions. Second operand has 8 states, 8 states have (on average 15.25) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-06 07:14:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:14:53,998 INFO L93 Difference]: Finished difference Result 1842 states and 2509 transitions. [2025-02-06 07:14:53,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 07:14:53,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 217 [2025-02-06 07:14:53,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:14:54,004 INFO L225 Difference]: With dead ends: 1842 [2025-02-06 07:14:54,004 INFO L226 Difference]: Without dead ends: 936 [2025-02-06 07:14:54,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-02-06 07:14:54,007 INFO L435 NwaCegarLoop]: 850 mSDtfsCounter, 2 mSDsluCounter, 5071 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5921 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 07:14:54,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5921 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 07:14:54,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2025-02-06 07:14:54,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 936. [2025-02-06 07:14:54,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 686 states have (on average 1.336734693877551) internal successors, (917), 710 states have internal predecessors, (917), 173 states have call successors, (173), 77 states have call predecessors, (173), 75 states have return successors, (181), 166 states have call predecessors, (181), 172 states have call successors, (181) [2025-02-06 07:14:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1271 transitions. [2025-02-06 07:14:54,032 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1271 transitions. Word has length 217 [2025-02-06 07:14:54,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:14:54,033 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1271 transitions. [2025-02-06 07:14:54,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-06 07:14:54,033 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1271 transitions. [2025-02-06 07:14:54,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2025-02-06 07:14:54,037 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:14:54,037 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:14:54,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 07:14:54,242 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 07:14:54,242 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:14:54,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:14:54,242 INFO L85 PathProgramCache]: Analyzing trace with hash 745977164, now seen corresponding path program 1 times [2025-02-06 07:14:54,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:14:54,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798101692] [2025-02-06 07:14:54,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:54,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:14:54,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 233 statements into 1 equivalence classes. [2025-02-06 07:14:54,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 233 of 233 statements. [2025-02-06 07:14:54,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:54,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:54,994 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2025-02-06 07:14:54,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:14:54,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798101692] [2025-02-06 07:14:54,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798101692] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 07:14:54,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568964287] [2025-02-06 07:14:54,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:54,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:14:54,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:14:54,997 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 07:14:54,998 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 07:14:55,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 233 statements into 1 equivalence classes. [2025-02-06 07:14:56,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 233 of 233 statements. [2025-02-06 07:14:56,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:56,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:56,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 2925 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 07:14:56,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 07:14:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-02-06 07:14:56,155 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 07:14:56,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568964287] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:14:56,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 07:14:56,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2025-02-06 07:14:56,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265122740] [2025-02-06 07:14:56,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:14:56,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 07:14:56,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:14:56,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 07:14:56,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-02-06 07:14:56,156 INFO L87 Difference]: Start difference. First operand 936 states and 1271 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 7 states have internal predecessors, (132), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2025-02-06 07:14:56,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:14:56,256 INFO L93 Difference]: Finished difference Result 1854 states and 2526 transitions. [2025-02-06 07:14:56,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 07:14:56,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 7 states have internal predecessors, (132), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 233 [2025-02-06 07:14:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:14:56,262 INFO L225 Difference]: With dead ends: 1854 [2025-02-06 07:14:56,262 INFO L226 Difference]: Without dead ends: 945 [2025-02-06 07:14:56,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-02-06 07:14:56,265 INFO L435 NwaCegarLoop]: 850 mSDtfsCounter, 4 mSDsluCounter, 5071 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5921 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 07:14:56,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5921 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 07:14:56,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2025-02-06 07:14:56,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 937. [2025-02-06 07:14:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 686 states have (on average 1.336734693877551) internal successors, (917), 711 states have internal predecessors, (917), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 167 states have call predecessors, (182), 173 states have call successors, (182) [2025-02-06 07:14:56,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1273 transitions. [2025-02-06 07:14:56,341 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1273 transitions. Word has length 233 [2025-02-06 07:14:56,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:14:56,343 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1273 transitions. [2025-02-06 07:14:56,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 7 states have internal predecessors, (132), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2025-02-06 07:14:56,343 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1273 transitions. [2025-02-06 07:14:56,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2025-02-06 07:14:56,348 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:14:56,348 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:14:56,361 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 07:14:56,549 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 07:14:56,549 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:14:56,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:14:56,550 INFO L85 PathProgramCache]: Analyzing trace with hash 137900301, now seen corresponding path program 1 times [2025-02-06 07:14:56,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:14:56,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814729643] [2025-02-06 07:14:56,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:56,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:14:57,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 233 statements into 1 equivalence classes. [2025-02-06 07:14:57,079 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 233 of 233 statements. [2025-02-06 07:14:57,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:57,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:57,300 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2025-02-06 07:14:57,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:14:57,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814729643] [2025-02-06 07:14:57,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814729643] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:14:57,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 07:14:57,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 07:14:57,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870126920] [2025-02-06 07:14:57,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:14:57,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 07:14:57,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:14:57,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 07:14:57,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 07:14:57,303 INFO L87 Difference]: Start difference. First operand 937 states and 1273 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 07:14:57,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:14:57,360 INFO L93 Difference]: Finished difference Result 1854 states and 2527 transitions. [2025-02-06 07:14:57,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 07:14:57,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 233 [2025-02-06 07:14:57,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:14:57,365 INFO L225 Difference]: With dead ends: 1854 [2025-02-06 07:14:57,365 INFO L226 Difference]: Without dead ends: 944 [2025-02-06 07:14:57,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 07:14:57,368 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 3 mSDsluCounter, 3391 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4243 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:14:57,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4243 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:14:57,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2025-02-06 07:14:57,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 942. [2025-02-06 07:14:57,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 690 states have (on average 1.3347826086956522) internal successors, (921), 714 states have internal predecessors, (921), 174 states have call successors, (174), 77 states have call predecessors, (174), 76 states have return successors, (186), 168 states have call predecessors, (186), 173 states have call successors, (186) [2025-02-06 07:14:57,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1281 transitions. [2025-02-06 07:14:57,391 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1281 transitions. Word has length 233 [2025-02-06 07:14:57,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:14:57,391 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1281 transitions. [2025-02-06 07:14:57,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 07:14:57,391 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1281 transitions. [2025-02-06 07:14:57,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2025-02-06 07:14:57,396 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:14:57,396 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:14:57,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 07:14:57,396 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:14:57,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:14:57,396 INFO L85 PathProgramCache]: Analyzing trace with hash 44866270, now seen corresponding path program 1 times [2025-02-06 07:14:57,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:14:57,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996995994] [2025-02-06 07:14:57,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:57,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:14:57,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 249 statements into 1 equivalence classes. [2025-02-06 07:14:57,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 249 of 249 statements. [2025-02-06 07:14:57,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:57,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2025-02-06 07:14:58,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:14:58,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996995994] [2025-02-06 07:14:58,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996995994] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:14:58,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 07:14:58,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 07:14:58,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265408582] [2025-02-06 07:14:58,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:14:58,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 07:14:58,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:14:58,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 07:14:58,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 07:14:58,072 INFO L87 Difference]: Start difference. First operand 942 states and 1281 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 07:14:58,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:14:58,139 INFO L93 Difference]: Finished difference Result 1860 states and 2535 transitions. [2025-02-06 07:14:58,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 07:14:58,139 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 249 [2025-02-06 07:14:58,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:14:58,145 INFO L225 Difference]: With dead ends: 1860 [2025-02-06 07:14:58,146 INFO L226 Difference]: Without dead ends: 945 [2025-02-06 07:14:58,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 07:14:58,149 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 1 mSDsluCounter, 3426 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4287 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:14:58,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4287 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:14:58,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2025-02-06 07:14:58,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 939. [2025-02-06 07:14:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 688 states have (on average 1.3357558139534884) internal successors, (919), 712 states have internal predecessors, (919), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2025-02-06 07:14:58,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1275 transitions. [2025-02-06 07:14:58,176 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1275 transitions. Word has length 249 [2025-02-06 07:14:58,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:14:58,176 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1275 transitions. [2025-02-06 07:14:58,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 07:14:58,177 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1275 transitions. [2025-02-06 07:14:58,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2025-02-06 07:14:58,183 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:14:58,183 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:14:58,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 07:14:58,183 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:14:58,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:14:58,184 INFO L85 PathProgramCache]: Analyzing trace with hash -209870275, now seen corresponding path program 1 times [2025-02-06 07:14:58,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:14:58,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508902227] [2025-02-06 07:14:58,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:58,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:14:58,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 249 statements into 1 equivalence classes. [2025-02-06 07:14:58,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 249 of 249 statements. [2025-02-06 07:14:58,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:14:58,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:14:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-02-06 07:14:59,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:14:59,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508902227] [2025-02-06 07:14:59,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508902227] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 07:14:59,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045481288] [2025-02-06 07:14:59,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:14:59,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:14:59,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:14:59,212 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 07:14:59,214 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 07:15:00,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 249 statements into 1 equivalence classes. [2025-02-06 07:15:00,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 249 of 249 statements. [2025-02-06 07:15:00,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:00,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:00,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 3077 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 07:15:00,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 07:15:00,467 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-02-06 07:15:00,467 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 07:15:00,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045481288] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:15:00,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 07:15:00,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2025-02-06 07:15:00,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131451115] [2025-02-06 07:15:00,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:15:00,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 07:15:00,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:15:00,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 07:15:00,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 07:15:00,471 INFO L87 Difference]: Start difference. First operand 939 states and 1275 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2025-02-06 07:15:00,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:15:00,538 INFO L93 Difference]: Finished difference Result 1854 states and 2523 transitions. [2025-02-06 07:15:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 07:15:00,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 249 [2025-02-06 07:15:00,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:15:00,544 INFO L225 Difference]: With dead ends: 1854 [2025-02-06 07:15:00,545 INFO L226 Difference]: Without dead ends: 942 [2025-02-06 07:15:00,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 07:15:00,548 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 0 mSDsluCounter, 2540 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3393 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:15:00,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3393 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:15:00,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2025-02-06 07:15:00,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 939. [2025-02-06 07:15:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 688 states have (on average 1.3357558139534884) internal successors, (919), 712 states have internal predecessors, (919), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2025-02-06 07:15:00,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1275 transitions. [2025-02-06 07:15:00,570 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1275 transitions. Word has length 249 [2025-02-06 07:15:00,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:15:00,571 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1275 transitions. [2025-02-06 07:15:00,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2025-02-06 07:15:00,571 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1275 transitions. [2025-02-06 07:15:00,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2025-02-06 07:15:00,576 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:15:00,576 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1] [2025-02-06 07:15:00,589 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 07:15:00,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-06 07:15:00,781 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:15:00,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:15:00,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1014394846, now seen corresponding path program 1 times [2025-02-06 07:15:00,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:15:00,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810548293] [2025-02-06 07:15:00,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:00,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:15:01,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 270 statements into 1 equivalence classes. [2025-02-06 07:15:01,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 270 of 270 statements. [2025-02-06 07:15:01,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:01,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:01,338 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-02-06 07:15:01,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:15:01,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810548293] [2025-02-06 07:15:01,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810548293] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:15:01,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 07:15:01,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 07:15:01,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811239302] [2025-02-06 07:15:01,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:15:01,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 07:15:01,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:15:01,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 07:15:01,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 07:15:01,340 INFO L87 Difference]: Start difference. First operand 939 states and 1275 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-02-06 07:15:01,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:15:01,377 INFO L93 Difference]: Finished difference Result 1853 states and 2522 transitions. [2025-02-06 07:15:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 07:15:01,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 270 [2025-02-06 07:15:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:15:01,383 INFO L225 Difference]: With dead ends: 1853 [2025-02-06 07:15:01,383 INFO L226 Difference]: Without dead ends: 941 [2025-02-06 07:15:01,386 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 07:15:01,386 INFO L435 NwaCegarLoop]: 854 mSDtfsCounter, 1 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:15:01,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1704 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:15:01,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2025-02-06 07:15:01,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 940. [2025-02-06 07:15:01,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 689 states have (on average 1.3352685050798259) internal successors, (920), 713 states have internal predecessors, (920), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2025-02-06 07:15:01,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1276 transitions. [2025-02-06 07:15:01,408 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1276 transitions. Word has length 270 [2025-02-06 07:15:01,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:15:01,409 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1276 transitions. [2025-02-06 07:15:01,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-02-06 07:15:01,409 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1276 transitions. [2025-02-06 07:15:01,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2025-02-06 07:15:01,414 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:15:01,414 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2025-02-06 07:15:01,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 07:15:01,414 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:15:01,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:15:01,414 INFO L85 PathProgramCache]: Analyzing trace with hash 2123124575, now seen corresponding path program 1 times [2025-02-06 07:15:01,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:15:01,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411766890] [2025-02-06 07:15:01,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:01,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:15:01,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 272 statements into 1 equivalence classes. [2025-02-06 07:15:01,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 272 of 272 statements. [2025-02-06 07:15:01,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:01,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-02-06 07:15:02,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:15:02,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411766890] [2025-02-06 07:15:02,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411766890] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 07:15:02,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507724307] [2025-02-06 07:15:02,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:02,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:15:02,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:15:02,089 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 07:15:02,092 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 07:15:03,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 272 statements into 1 equivalence classes. [2025-02-06 07:15:03,522 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 272 of 272 statements. [2025-02-06 07:15:03,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:03,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:03,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 3200 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 07:15:03,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 07:15:03,586 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 64 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2025-02-06 07:15:03,587 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 07:15:03,884 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-02-06 07:15:03,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507724307] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 07:15:03,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 07:15:03,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-06 07:15:03,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661649689] [2025-02-06 07:15:03,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 07:15:03,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 07:15:03,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:15:03,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 07:15:03,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 07:15:03,886 INFO L87 Difference]: Start difference. First operand 940 states and 1276 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2025-02-06 07:15:03,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:15:03,940 INFO L93 Difference]: Finished difference Result 1859 states and 2530 transitions. [2025-02-06 07:15:03,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 07:15:03,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 272 [2025-02-06 07:15:03,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:15:03,946 INFO L225 Difference]: With dead ends: 1859 [2025-02-06 07:15:03,946 INFO L226 Difference]: Without dead ends: 946 [2025-02-06 07:15:03,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 541 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 07:15:03,949 INFO L435 NwaCegarLoop]: 854 mSDtfsCounter, 2 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:15:03,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2554 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:15:03,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2025-02-06 07:15:03,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 946. [2025-02-06 07:15:03,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 695 states have (on average 1.3323741007194245) internal successors, (926), 719 states have internal predecessors, (926), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2025-02-06 07:15:03,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1282 transitions. [2025-02-06 07:15:03,972 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1282 transitions. Word has length 272 [2025-02-06 07:15:03,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:15:03,972 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1282 transitions. [2025-02-06 07:15:03,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2025-02-06 07:15:03,972 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1282 transitions. [2025-02-06 07:15:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2025-02-06 07:15:03,977 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:15:03,977 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1] [2025-02-06 07:15:03,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-06 07:15:04,177 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,SelfDestructingSolverStorable12 [2025-02-06 07:15:04,178 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:15:04,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:15:04,178 INFO L85 PathProgramCache]: Analyzing trace with hash -950621802, now seen corresponding path program 2 times [2025-02-06 07:15:04,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:15:04,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863542631] [2025-02-06 07:15:04,178 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 07:15:04,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:15:04,619 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 278 statements into 2 equivalence classes. [2025-02-06 07:15:04,641 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 88 of 278 statements. [2025-02-06 07:15:04,641 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 07:15:04,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:04,849 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-02-06 07:15:04,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:15:04,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863542631] [2025-02-06 07:15:04,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863542631] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:15:04,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 07:15:04,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 07:15:04,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231903119] [2025-02-06 07:15:04,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:15:04,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 07:15:04,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:15:04,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 07:15:04,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 07:15:04,850 INFO L87 Difference]: Start difference. First operand 946 states and 1282 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2025-02-06 07:15:04,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:15:04,898 INFO L93 Difference]: Finished difference Result 1866 states and 2535 transitions. [2025-02-06 07:15:04,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 07:15:04,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 278 [2025-02-06 07:15:04,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:15:04,905 INFO L225 Difference]: With dead ends: 1866 [2025-02-06 07:15:04,905 INFO L226 Difference]: Without dead ends: 947 [2025-02-06 07:15:04,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 07:15:04,908 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 18 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2556 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:15:04,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2556 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:15:04,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2025-02-06 07:15:04,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 946. [2025-02-06 07:15:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 695 states have (on average 1.3294964028776979) internal successors, (924), 719 states have internal predecessors, (924), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2025-02-06 07:15:04,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1280 transitions. [2025-02-06 07:15:04,933 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1280 transitions. Word has length 278 [2025-02-06 07:15:04,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:15:04,933 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1280 transitions. [2025-02-06 07:15:04,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2025-02-06 07:15:04,933 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1280 transitions. [2025-02-06 07:15:04,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2025-02-06 07:15:04,938 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:15:04,938 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2025-02-06 07:15:04,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 07:15:04,938 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:15:04,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:15:04,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1842516658, now seen corresponding path program 1 times [2025-02-06 07:15:04,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:15:04,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109332595] [2025-02-06 07:15:04,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:04,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:15:05,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 280 statements into 1 equivalence classes. [2025-02-06 07:15:05,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 280 of 280 statements. [2025-02-06 07:15:05,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:05,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:05,824 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-02-06 07:15:05,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:15:05,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109332595] [2025-02-06 07:15:05,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109332595] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 07:15:05,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528662945] [2025-02-06 07:15:05,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:05,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:15:05,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:15:05,827 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 07:15:05,831 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 07:15:06,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 280 statements into 1 equivalence classes. [2025-02-06 07:15:07,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 280 of 280 statements. [2025-02-06 07:15:07,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:07,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:07,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 3251 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 07:15:07,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 07:15:07,363 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 64 proven. 16 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2025-02-06 07:15:07,363 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 07:15:07,616 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-02-06 07:15:07,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528662945] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 07:15:07,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 07:15:07,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-02-06 07:15:07,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476831424] [2025-02-06 07:15:07,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 07:15:07,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 07:15:07,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:15:07,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 07:15:07,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-02-06 07:15:07,618 INFO L87 Difference]: Start difference. First operand 946 states and 1280 transitions. Second operand has 13 states, 13 states have (on average 14.461538461538462) internal successors, (188), 13 states have internal predecessors, (188), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2025-02-06 07:15:07,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:15:07,693 INFO L93 Difference]: Finished difference Result 1877 states and 2547 transitions. [2025-02-06 07:15:07,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 07:15:07,694 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 14.461538461538462) internal successors, (188), 13 states have internal predecessors, (188), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 280 [2025-02-06 07:15:07,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:15:07,700 INFO L225 Difference]: With dead ends: 1877 [2025-02-06 07:15:07,700 INFO L226 Difference]: Without dead ends: 958 [2025-02-06 07:15:07,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-02-06 07:15:07,704 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 2 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:15:07,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2548 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:15:07,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2025-02-06 07:15:07,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 958. [2025-02-06 07:15:07,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 707 states have (on average 1.3239038189533239) internal successors, (936), 731 states have internal predecessors, (936), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2025-02-06 07:15:07,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1292 transitions. [2025-02-06 07:15:07,731 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1292 transitions. Word has length 280 [2025-02-06 07:15:07,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:15:07,732 INFO L471 AbstractCegarLoop]: Abstraction has 958 states and 1292 transitions. [2025-02-06 07:15:07,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.461538461538462) internal successors, (188), 13 states have internal predecessors, (188), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2025-02-06 07:15:07,732 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1292 transitions. [2025-02-06 07:15:07,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2025-02-06 07:15:07,737 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:15:07,737 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2025-02-06 07:15:07,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 07:15:07,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:15:07,942 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:15:07,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:15:07,944 INFO L85 PathProgramCache]: Analyzing trace with hash -344306052, now seen corresponding path program 2 times [2025-02-06 07:15:07,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:15:07,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451808670] [2025-02-06 07:15:07,944 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 07:15:07,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:15:08,505 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 292 statements into 2 equivalence classes. [2025-02-06 07:15:08,532 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 292 statements. [2025-02-06 07:15:08,533 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 07:15:08,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:08,860 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2025-02-06 07:15:08,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:15:08,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451808670] [2025-02-06 07:15:08,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451808670] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:15:08,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 07:15:08,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 07:15:08,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545653725] [2025-02-06 07:15:08,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:15:08,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 07:15:08,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:15:08,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 07:15:08,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 07:15:08,862 INFO L87 Difference]: Start difference. First operand 958 states and 1292 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-06 07:15:08,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:15:08,999 INFO L93 Difference]: Finished difference Result 1895 states and 2571 transitions. [2025-02-06 07:15:09,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 07:15:09,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 292 [2025-02-06 07:15:09,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:15:09,006 INFO L225 Difference]: With dead ends: 1895 [2025-02-06 07:15:09,006 INFO L226 Difference]: Without dead ends: 964 [2025-02-06 07:15:09,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:15:09,010 INFO L435 NwaCegarLoop]: 855 mSDtfsCounter, 0 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 07:15:09,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3410 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 07:15:09,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2025-02-06 07:15:09,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 962. [2025-02-06 07:15:09,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 710 states have (on average 1.3225352112676056) internal successors, (939), 734 states have internal predecessors, (939), 174 states have call successors, (174), 77 states have call predecessors, (174), 76 states have return successors, (184), 169 states have call predecessors, (184), 173 states have call successors, (184) [2025-02-06 07:15:09,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1297 transitions. [2025-02-06 07:15:09,038 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1297 transitions. Word has length 292 [2025-02-06 07:15:09,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:15:09,039 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1297 transitions. [2025-02-06 07:15:09,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-06 07:15:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1297 transitions. [2025-02-06 07:15:09,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2025-02-06 07:15:09,044 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:15:09,045 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2025-02-06 07:15:09,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 07:15:09,045 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:15:09,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:15:09,045 INFO L85 PathProgramCache]: Analyzing trace with hash 847242524, now seen corresponding path program 1 times [2025-02-06 07:15:09,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:15:09,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347925737] [2025-02-06 07:15:09,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:09,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:15:09,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 292 statements into 1 equivalence classes. [2025-02-06 07:15:09,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 292 of 292 statements. [2025-02-06 07:15:09,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:09,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 3 proven. 100 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-02-06 07:15:10,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:15:10,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347925737] [2025-02-06 07:15:10,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347925737] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 07:15:10,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221370269] [2025-02-06 07:15:10,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:10,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:15:10,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:15:10,062 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 07:15:10,064 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 07:15:11,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 292 statements into 1 equivalence classes. [2025-02-06 07:15:11,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 292 of 292 statements. [2025-02-06 07:15:11,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:11,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:11,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 3379 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 07:15:11,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 07:15:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 64 proven. 100 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2025-02-06 07:15:11,737 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 07:15:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 3 proven. 100 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-02-06 07:15:12,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221370269] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 07:15:12,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 07:15:12,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2025-02-06 07:15:12,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262818327] [2025-02-06 07:15:12,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 07:15:12,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-02-06 07:15:12,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:15:12,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-02-06 07:15:12,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-02-06 07:15:12,141 INFO L87 Difference]: Start difference. First operand 962 states and 1297 transitions. Second operand has 25 states, 25 states have (on average 8.64) internal successors, (216), 25 states have internal predecessors, (216), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2025-02-06 07:15:12,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:15:12,291 INFO L93 Difference]: Finished difference Result 1921 states and 2599 transitions. [2025-02-06 07:15:12,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-06 07:15:12,292 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.64) internal successors, (216), 25 states have internal predecessors, (216), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 292 [2025-02-06 07:15:12,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:15:12,298 INFO L225 Difference]: With dead ends: 1921 [2025-02-06 07:15:12,298 INFO L226 Difference]: Without dead ends: 986 [2025-02-06 07:15:12,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 572 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-02-06 07:15:12,301 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 2 mSDsluCounter, 6784 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7636 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 07:15:12,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7636 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 07:15:12,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2025-02-06 07:15:12,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 986. [2025-02-06 07:15:12,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 734 states have (on average 1.3119891008174387) internal successors, (963), 758 states have internal predecessors, (963), 174 states have call successors, (174), 77 states have call predecessors, (174), 76 states have return successors, (184), 169 states have call predecessors, (184), 173 states have call successors, (184) [2025-02-06 07:15:12,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1321 transitions. [2025-02-06 07:15:12,334 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1321 transitions. Word has length 292 [2025-02-06 07:15:12,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:15:12,335 INFO L471 AbstractCegarLoop]: Abstraction has 986 states and 1321 transitions. [2025-02-06 07:15:12,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.64) internal successors, (216), 25 states have internal predecessors, (216), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2025-02-06 07:15:12,339 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1321 transitions. [2025-02-06 07:15:12,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2025-02-06 07:15:12,346 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:15:12,346 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2025-02-06 07:15:12,363 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 07:15:12,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-06 07:15:12,547 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:15:12,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:15:12,548 INFO L85 PathProgramCache]: Analyzing trace with hash 226310264, now seen corresponding path program 2 times [2025-02-06 07:15:12,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:15:12,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008865760] [2025-02-06 07:15:12,548 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 07:15:12,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:15:12,987 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 316 statements into 2 equivalence classes. [2025-02-06 07:15:13,078 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 316 statements. [2025-02-06 07:15:13,078 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 07:15:13,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:13,243 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2025-02-06 07:15:13,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:15:13,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008865760] [2025-02-06 07:15:13,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008865760] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:15:13,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 07:15:13,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 07:15:13,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519557727] [2025-02-06 07:15:13,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:15:13,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 07:15:13,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:15:13,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 07:15:13,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 07:15:13,245 INFO L87 Difference]: Start difference. First operand 986 states and 1321 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2025-02-06 07:15:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:15:13,299 INFO L93 Difference]: Finished difference Result 1954 states and 2672 transitions. [2025-02-06 07:15:13,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 07:15:13,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 316 [2025-02-06 07:15:13,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:15:13,306 INFO L225 Difference]: With dead ends: 1954 [2025-02-06 07:15:13,306 INFO L226 Difference]: Without dead ends: 995 [2025-02-06 07:15:13,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 07:15:13,310 INFO L435 NwaCegarLoop]: 850 mSDtfsCounter, 4 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 07:15:13,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2542 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 07:15:13,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2025-02-06 07:15:13,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 994. [2025-02-06 07:15:13,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 740 states have (on average 1.3135135135135134) internal successors, (972), 765 states have internal predecessors, (972), 174 states have call successors, (174), 78 states have call predecessors, (174), 78 states have return successors, (188), 169 states have call predecessors, (188), 173 states have call successors, (188) [2025-02-06 07:15:13,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1334 transitions. [2025-02-06 07:15:13,334 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1334 transitions. Word has length 316 [2025-02-06 07:15:13,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:15:13,334 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1334 transitions. [2025-02-06 07:15:13,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2025-02-06 07:15:13,335 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1334 transitions. [2025-02-06 07:15:13,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2025-02-06 07:15:13,338 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:15:13,339 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2025-02-06 07:15:13,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-06 07:15:13,339 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:15:13,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:15:13,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1608758482, now seen corresponding path program 1 times [2025-02-06 07:15:13,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:15:13,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946624211] [2025-02-06 07:15:13,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:13,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:15:13,765 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 318 statements into 1 equivalence classes. [2025-02-06 07:15:13,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 318 of 318 statements. [2025-02-06 07:15:13,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:13,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:15,083 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 3 proven. 484 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2025-02-06 07:15:15,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:15:15,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946624211] [2025-02-06 07:15:15,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946624211] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 07:15:15,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388295227] [2025-02-06 07:15:15,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:15,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:15:15,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:15:15,086 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 07:15:15,087 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 07:15:16,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 318 statements into 1 equivalence classes. [2025-02-06 07:15:16,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 318 of 318 statements. [2025-02-06 07:15:16,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:16,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:16,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 3613 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-06 07:15:16,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 07:15:16,912 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 68 proven. 484 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-02-06 07:15:16,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 07:15:17,538 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 3 proven. 484 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2025-02-06 07:15:17,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388295227] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 07:15:17,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 07:15:17,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 33 [2025-02-06 07:15:17,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777560456] [2025-02-06 07:15:17,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 07:15:17,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-02-06 07:15:17,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:15:17,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-02-06 07:15:17,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2025-02-06 07:15:17,541 INFO L87 Difference]: Start difference. First operand 994 states and 1334 transitions. Second operand has 33 states, 33 states have (on average 7.151515151515151) internal successors, (236), 33 states have internal predecessors, (236), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2025-02-06 07:15:17,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:15:17,704 INFO L93 Difference]: Finished difference Result 1977 states and 2661 transitions. [2025-02-06 07:15:17,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-02-06 07:15:17,704 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 7.151515151515151) internal successors, (236), 33 states have internal predecessors, (236), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 318 [2025-02-06 07:15:17,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:15:17,711 INFO L225 Difference]: With dead ends: 1977 [2025-02-06 07:15:17,711 INFO L226 Difference]: Without dead ends: 1010 [2025-02-06 07:15:17,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 612 SyntacticMatches, 16 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2025-02-06 07:15:17,715 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 1 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 07:15:17,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4244 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 07:15:17,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2025-02-06 07:15:17,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1010. [2025-02-06 07:15:17,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 756 states have (on average 1.306878306878307) internal successors, (988), 781 states have internal predecessors, (988), 174 states have call successors, (174), 78 states have call predecessors, (174), 78 states have return successors, (188), 169 states have call predecessors, (188), 173 states have call successors, (188) [2025-02-06 07:15:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1350 transitions. [2025-02-06 07:15:17,741 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1350 transitions. Word has length 318 [2025-02-06 07:15:17,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:15:17,741 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1350 transitions. [2025-02-06 07:15:17,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 7.151515151515151) internal successors, (236), 33 states have internal predecessors, (236), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2025-02-06 07:15:17,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1350 transitions. [2025-02-06 07:15:17,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2025-02-06 07:15:17,746 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:15:17,746 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2025-02-06 07:15:17,763 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 07:15:17,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:15:17,947 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:15:17,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:15:17,948 INFO L85 PathProgramCache]: Analyzing trace with hash -487294230, now seen corresponding path program 2 times [2025-02-06 07:15:17,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:15:17,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778638618] [2025-02-06 07:15:17,948 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 07:15:17,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:15:18,387 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 334 statements into 2 equivalence classes. [2025-02-06 07:15:18,406 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 334 statements. [2025-02-06 07:15:18,406 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 07:15:18,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1074 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 1042 trivial. 0 not checked. [2025-02-06 07:15:18,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:15:18,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778638618] [2025-02-06 07:15:18,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778638618] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:15:18,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 07:15:18,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 07:15:18,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500827561] [2025-02-06 07:15:18,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:15:18,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 07:15:18,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:15:18,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 07:15:18,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 07:15:18,882 INFO L87 Difference]: Start difference. First operand 1010 states and 1350 transitions. Second operand has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2025-02-06 07:15:19,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:15:19,053 INFO L93 Difference]: Finished difference Result 2047 states and 2755 transitions. [2025-02-06 07:15:19,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 07:15:19,055 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) Word has length 334 [2025-02-06 07:15:19,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:15:19,061 INFO L225 Difference]: With dead ends: 2047 [2025-02-06 07:15:19,061 INFO L226 Difference]: Without dead ends: 1064 [2025-02-06 07:15:19,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-06 07:15:19,067 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 11 mSDsluCounter, 5918 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6765 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 07:15:19,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6765 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 07:15:19,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2025-02-06 07:15:19,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1026. [2025-02-06 07:15:19,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 770 states have (on average 1.3064935064935066) internal successors, (1006), 795 states have internal predecessors, (1006), 175 states have call successors, (175), 78 states have call predecessors, (175), 79 states have return successors, (192), 171 states have call predecessors, (192), 174 states have call successors, (192) [2025-02-06 07:15:19,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1373 transitions. [2025-02-06 07:15:19,099 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1373 transitions. Word has length 334 [2025-02-06 07:15:19,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:15:19,100 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1373 transitions. [2025-02-06 07:15:19,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2025-02-06 07:15:19,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1373 transitions. [2025-02-06 07:15:19,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2025-02-06 07:15:19,104 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:15:19,104 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2025-02-06 07:15:19,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-06 07:15:19,105 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:15:19,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:15:19,105 INFO L85 PathProgramCache]: Analyzing trace with hash -286185462, now seen corresponding path program 1 times [2025-02-06 07:15:19,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:15:19,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337228596] [2025-02-06 07:15:19,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:19,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:15:19,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 374 statements into 1 equivalence classes. [2025-02-06 07:15:19,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 374 of 374 statements. [2025-02-06 07:15:19,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:19,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:20,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2025-02-06 07:15:20,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:15:20,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337228596] [2025-02-06 07:15:20,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337228596] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 07:15:20,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024766397] [2025-02-06 07:15:20,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:20,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:15:20,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:15:20,581 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 07:15:20,583 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 07:15:21,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 374 statements into 1 equivalence classes. [2025-02-06 07:15:22,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 374 of 374 statements. [2025-02-06 07:15:22,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:22,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:22,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 3883 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 07:15:22,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 07:15:22,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1178 trivial. 0 not checked. [2025-02-06 07:15:22,349 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 07:15:22,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024766397] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:15:22,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 07:15:22,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-02-06 07:15:22,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492798491] [2025-02-06 07:15:22,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:15:22,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 07:15:22,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:15:22,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 07:15:22,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-06 07:15:22,351 INFO L87 Difference]: Start difference. First operand 1026 states and 1373 transitions. Second operand has 6 states, 5 states have (on average 30.4) internal successors, (152), 6 states have internal predecessors, (152), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2025-02-06 07:15:22,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:15:22,765 INFO L93 Difference]: Finished difference Result 2073 states and 2789 transitions. [2025-02-06 07:15:22,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 07:15:22,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 30.4) internal successors, (152), 6 states have internal predecessors, (152), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) Word has length 374 [2025-02-06 07:15:22,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:15:22,772 INFO L225 Difference]: With dead ends: 2073 [2025-02-06 07:15:22,772 INFO L226 Difference]: Without dead ends: 1054 [2025-02-06 07:15:22,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-06 07:15:22,776 INFO L435 NwaCegarLoop]: 851 mSDtfsCounter, 16 mSDsluCounter, 3364 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 4215 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 07:15:22,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 4215 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 07:15:22,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2025-02-06 07:15:22,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1033. [2025-02-06 07:15:22,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 776 states have (on average 1.3054123711340206) internal successors, (1013), 802 states have internal predecessors, (1013), 175 states have call successors, (175), 78 states have call predecessors, (175), 80 states have return successors, (193), 171 states have call predecessors, (193), 174 states have call successors, (193) [2025-02-06 07:15:22,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1381 transitions. [2025-02-06 07:15:22,803 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1381 transitions. Word has length 374 [2025-02-06 07:15:22,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:15:22,803 INFO L471 AbstractCegarLoop]: Abstraction has 1033 states and 1381 transitions. [2025-02-06 07:15:22,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 30.4) internal successors, (152), 6 states have internal predecessors, (152), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2025-02-06 07:15:22,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1381 transitions. [2025-02-06 07:15:22,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2025-02-06 07:15:22,809 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:15:22,809 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2025-02-06 07:15:22,827 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 07:15:23,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:15:23,014 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:15:23,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:15:23,015 INFO L85 PathProgramCache]: Analyzing trace with hash -853599222, now seen corresponding path program 1 times [2025-02-06 07:15:23,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:15:23,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909265634] [2025-02-06 07:15:23,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:23,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:15:23,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 378 statements into 1 equivalence classes. [2025-02-06 07:15:23,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 378 of 378 statements. [2025-02-06 07:15:23,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:23,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:24,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2025-02-06 07:15:24,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:15:24,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909265634] [2025-02-06 07:15:24,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909265634] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 07:15:24,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012906246] [2025-02-06 07:15:24,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 07:15:24,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:15:24,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:15:24,518 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 07:15:24,519 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 07:15:25,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 378 statements into 1 equivalence classes. [2025-02-06 07:15:26,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 378 of 378 statements. [2025-02-06 07:15:26,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 07:15:26,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:26,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 3961 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-02-06 07:15:26,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 07:15:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 1129 trivial. 0 not checked. [2025-02-06 07:15:26,747 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 07:15:26,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012906246] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 07:15:26,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 07:15:26,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2025-02-06 07:15:26,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258322565] [2025-02-06 07:15:26,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 07:15:26,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 07:15:26,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 07:15:26,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 07:15:26,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 07:15:26,749 INFO L87 Difference]: Start difference. First operand 1033 states and 1381 transitions. Second operand has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2025-02-06 07:15:26,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 07:15:26,878 INFO L93 Difference]: Finished difference Result 2325 states and 3093 transitions. [2025-02-06 07:15:26,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 07:15:26,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 378 [2025-02-06 07:15:26,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 07:15:26,884 INFO L225 Difference]: With dead ends: 2325 [2025-02-06 07:15:26,885 INFO L226 Difference]: Without dead ends: 1319 [2025-02-06 07:15:26,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 07:15:26,888 INFO L435 NwaCegarLoop]: 851 mSDtfsCounter, 329 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 4227 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 07:15:26,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 4227 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 07:15:26,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2025-02-06 07:15:26,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1306. [2025-02-06 07:15:26,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 974 states have (on average 1.2967145790554415) internal successors, (1263), 1007 states have internal predecessors, (1263), 220 states have call successors, (220), 104 states have call predecessors, (220), 110 states have return successors, (245), 215 states have call predecessors, (245), 219 states have call successors, (245) [2025-02-06 07:15:26,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1728 transitions. [2025-02-06 07:15:26,921 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1728 transitions. Word has length 378 [2025-02-06 07:15:26,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 07:15:26,922 INFO L471 AbstractCegarLoop]: Abstraction has 1306 states and 1728 transitions. [2025-02-06 07:15:26,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2025-02-06 07:15:26,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1728 transitions. [2025-02-06 07:15:26,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2025-02-06 07:15:26,927 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 07:15:26,928 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2025-02-06 07:15:26,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 07:15:27,128 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,SelfDestructingSolverStorable21 [2025-02-06 07:15:27,129 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-06 07:15:27,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 07:15:27,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1130881597, now seen corresponding path program 2 times [2025-02-06 07:15:27,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 07:15:27,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136300453] [2025-02-06 07:15:27,130 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 07:15:27,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 07:15:27,544 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 398 statements into 2 equivalence classes. [2025-02-06 07:15:27,692 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 398 of 398 statements. [2025-02-06 07:15:27,692 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 07:15:27,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 07:15:28,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1307 trivial. 0 not checked. [2025-02-06 07:15:28,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 07:15:28,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136300453] [2025-02-06 07:15:28,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136300453] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 07:15:28,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519624492] [2025-02-06 07:15:28,818 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 07:15:28,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 07:15:28,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 07:15:28,822 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 07:15:28,823 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 07:15:30,236 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 398 statements into 2 equivalence classes.