./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:12:04,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:12:04,442 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 03:12:04,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:12:04,449 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:12:04,487 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:12:04,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:12:04,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:12:04,490 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:12:04,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:12:04,491 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:12:04,492 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:12:04,492 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:12:04,493 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:12:04,493 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:12:04,493 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:12:04,493 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:12:04,493 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:12:04,493 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:12:04,493 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:12:04,493 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:12:04,493 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:12:04,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:12:04,494 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:12:04,494 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:12:04,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:12:04,495 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:12:04,496 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:12:04,496 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:12:04,496 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:12:04,496 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:12:04,496 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:12:04,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:12:04,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:12:04,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:12:04,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:12:04,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:12:04,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:12:04,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:12:04,498 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:12:04,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:12:04,498 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:12:04,498 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:12:04,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:12:04,499 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d [2024-11-14 03:12:04,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:12:04,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:12:04,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:12:04,820 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:12:04,820 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:12:04,821 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i Unable to find full path for "g++" [2024-11-14 03:12:06,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:12:07,468 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:12:07,471 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2024-11-14 03:12:07,523 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/data/abd7f40ab/53de3ef4dcc147b2aac174158c982993/FLAGc88c89e8e [2024-11-14 03:12:07,811 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/data/abd7f40ab/53de3ef4dcc147b2aac174158c982993 [2024-11-14 03:12:07,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:12:07,815 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:12:07,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:12:07,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:12:07,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:12:07,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:12:07" (1/1) ... [2024-11-14 03:12:07,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43c06c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:07, skipping insertion in model container [2024-11-14 03:12:07,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:12:07" (1/1) ... [2024-11-14 03:12:07,980 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:12:10,433 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2024-11-14 03:12:10,438 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2024-11-14 03:12:10,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:12:10,487 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:12:10,643 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; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5755] [2024-11-14 03:12:10,647 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5762] [2024-11-14 03:12:10,648 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5769] [2024-11-14 03:12:10,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5799-5800] [2024-11-14 03:12:10,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5805-5807] [2024-11-14 03:12:10,653 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5876] [2024-11-14 03:12:10,653 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5884] [2024-11-14 03:12:10,975 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2024-11-14 03:12:10,978 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2024-11-14 03:12:10,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:12:11,227 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:12:11,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11 WrapperNode [2024-11-14 03:12:11,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:12:11,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:12:11,230 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:12:11,230 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:12:11,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11" (1/1) ... [2024-11-14 03:12:11,321 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11" (1/1) ... [2024-11-14 03:12:11,504 INFO L138 Inliner]: procedures = 387, calls = 2185, calls flagged for inlining = 154, calls inlined = 135, statements flattened = 4921 [2024-11-14 03:12:11,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:12:11,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:12:11,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:12:11,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:12:11,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11" (1/1) ... [2024-11-14 03:12:11,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11" (1/1) ... [2024-11-14 03:12:11,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11" (1/1) ... [2024-11-14 03:12:11,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11" (1/1) ... [2024-11-14 03:12:11,682 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11" (1/1) ... [2024-11-14 03:12:11,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11" (1/1) ... [2024-11-14 03:12:11,756 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11" (1/1) ... [2024-11-14 03:12:11,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11" (1/1) ... [2024-11-14 03:12:11,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:12:11,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:12:11,822 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:12:11,822 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:12:11,823 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11" (1/1) ... [2024-11-14 03:12:11,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:12:11,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:12:11,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:12:11,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:12:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2024-11-14 03:12:11,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2024-11-14 03:12:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-14 03:12:11,885 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-14 03:12:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2024-11-14 03:12:11,885 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2024-11-14 03:12:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2024-11-14 03:12:11,886 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2024-11-14 03:12:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-14 03:12:11,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-14 03:12:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 03:12:11,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 03:12:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-14 03:12:11,887 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-14 03:12:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2024-11-14 03:12:11,887 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2024-11-14 03:12:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2024-11-14 03:12:11,888 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2024-11-14 03:12:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2024-11-14 03:12:11,888 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2024-11-14 03:12:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2024-11-14 03:12:11,888 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2024-11-14 03:12:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-14 03:12:11,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-14 03:12:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2024-11-14 03:12:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2024-11-14 03:12:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2024-11-14 03:12:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2024-11-14 03:12:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-14 03:12:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-14 03:12:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-14 03:12:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-14 03:12:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:12:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2024-11-14 03:12:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2024-11-14 03:12:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2024-11-14 03:12:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2024-11-14 03:12:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-11-14 03:12:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-11-14 03:12:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2024-11-14 03:12:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2024-11-14 03:12:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-14 03:12:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-14 03:12:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2024-11-14 03:12:11,891 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2024-11-14 03:12:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2024-11-14 03:12:11,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2024-11-14 03:12:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-14 03:12:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2024-11-14 03:12:11,891 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2024-11-14 03:12:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2024-11-14 03:12:11,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2024-11-14 03:12:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2024-11-14 03:12:11,891 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2024-11-14 03:12:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 03:12:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-14 03:12:11,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-14 03:12:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2024-11-14 03:12:11,891 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2024-11-14 03:12:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:12:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-14 03:12:11,892 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-14 03:12:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2024-11-14 03:12:11,892 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2024-11-14 03:12:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-14 03:12:11,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-14 03:12:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-14 03:12:11,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-14 03:12:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-14 03:12:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-14 03:12:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2024-11-14 03:12:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2024-11-14 03:12:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2024-11-14 03:12:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2024-11-14 03:12:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2024-11-14 03:12:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2024-11-14 03:12:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2024-11-14 03:12:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2024-11-14 03:12:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:12:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-14 03:12:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-14 03:12:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2024-11-14 03:12:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2024-11-14 03:12:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:12:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-14 03:12:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-14 03:12:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-14 03:12:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-14 03:12:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:12:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 03:12:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 03:12:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-14 03:12:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-14 03:12:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2024-11-14 03:12:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2024-11-14 03:12:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2024-11-14 03:12:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2024-11-14 03:12:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2024-11-14 03:12:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2024-11-14 03:12:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-14 03:12:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-14 03:12:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-14 03:12:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-14 03:12:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2024-11-14 03:12:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2024-11-14 03:12:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2024-11-14 03:12:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2024-11-14 03:12:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-14 03:12:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-14 03:12:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-14 03:12:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-14 03:12:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2024-11-14 03:12:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2024-11-14 03:12:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:12:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:12:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2024-11-14 03:12:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2024-11-14 03:12:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-14 03:12:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 03:12:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 03:12:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 03:12:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2024-11-14 03:12:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2024-11-14 03:12:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2024-11-14 03:12:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2024-11-14 03:12:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2024-11-14 03:12:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2024-11-14 03:12:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2024-11-14 03:12:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2024-11-14 03:12:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-14 03:12:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-14 03:12:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2024-11-14 03:12:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2024-11-14 03:12:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2024-11-14 03:12:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2024-11-14 03:12:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-14 03:12:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-14 03:12:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:12:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:12:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2024-11-14 03:12:11,903 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2024-11-14 03:12:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-14 03:12:11,904 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-14 03:12:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-14 03:12:11,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-14 03:12:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2024-11-14 03:12:11,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2024-11-14 03:12:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-14 03:12:11,905 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-14 03:12:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-14 03:12:11,906 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-14 03:12:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-14 03:12:11,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-14 03:12:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2024-11-14 03:12:11,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2024-11-14 03:12:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-14 03:12:11,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-14 03:12:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2024-11-14 03:12:11,906 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2024-11-14 03:12:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-11-14 03:12:11,906 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-11-14 03:12:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2024-11-14 03:12:11,906 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2024-11-14 03:12:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-14 03:12:11,906 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-14 03:12:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-14 03:12:11,906 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2024-11-14 03:12:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-14 03:12:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-14 03:12:11,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:12:11,908 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2024-11-14 03:12:11,908 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2024-11-14 03:12:11,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-14 03:12:11,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-14 03:12:11,908 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2024-11-14 03:12:11,908 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2024-11-14 03:12:12,752 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:12:12,755 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:12:13,217 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 03:12:23,419 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-14 03:12:24,945 INFO L? ?]: Removed 1745 outVars from TransFormulas that were not future-live. [2024-11-14 03:12:24,945 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:12:27,007 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:12:27,011 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:12:27,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:12:27 BoogieIcfgContainer [2024-11-14 03:12:27,012 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:12:27,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:12:27,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:12:27,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:12:27,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:12:07" (1/3) ... [2024-11-14 03:12:27,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb5a982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:12:27, skipping insertion in model container [2024-11-14 03:12:27,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:12:11" (2/3) ... [2024-11-14 03:12:27,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb5a982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:12:27, skipping insertion in model container [2024-11-14 03:12:27,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:12:27" (3/3) ... [2024-11-14 03:12:27,027 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2024-11-14 03:12:27,044 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:12:27,046 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i that has 94 procedures, 1762 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-14 03:12:27,165 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:12:27,179 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=FINITE_AUTOMATA, 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;@bf27e2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:12:27,181 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:12:27,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 1760 states, 955 states have (on average 1.2450261780104712) internal successors, (1189), 976 states have internal predecessors, (1189), 712 states have call successors, (712), 93 states have call predecessors, (712), 92 states have return successors, (708), 697 states have call predecessors, (708), 708 states have call successors, (708) [2024-11-14 03:12:27,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-14 03:12:27,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:27,245 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:12:27,245 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:12:27,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:27,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1334621534, now seen corresponding path program 1 times [2024-11-14 03:12:27,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:12:27,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685162384] [2024-11-14 03:12:27,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:27,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:12:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:34,310 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-14 03:12:34,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:12:34,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685162384] [2024-11-14 03:12:34,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685162384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:12:34,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:12:34,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:12:34,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788207898] [2024-11-14 03:12:34,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:12:34,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:12:34,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:12:34,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:12:34,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:12:34,347 INFO L87 Difference]: Start difference. First operand has 1760 states, 955 states have (on average 1.2450261780104712) internal successors, (1189), 976 states have internal predecessors, (1189), 712 states have call successors, (712), 93 states have call predecessors, (712), 92 states have return successors, (708), 697 states have call predecessors, (708), 708 states have call successors, (708) Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-14 03:12:36,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:12:38,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:12:46,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:12:46,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:46,941 INFO L93 Difference]: Finished difference Result 4884 states and 7273 transitions. [2024-11-14 03:12:46,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:12:46,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 136 [2024-11-14 03:12:46,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:47,020 INFO L225 Difference]: With dead ends: 4884 [2024-11-14 03:12:47,021 INFO L226 Difference]: Without dead ends: 3042 [2024-11-14 03:12:47,047 INFO L431 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 [2024-11-14 03:12:47,052 INFO L432 NwaCegarLoop]: 2478 mSDtfsCounter, 2063 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2063 SdHoareTripleChecker+Valid, 4830 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:12:47,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2063 Valid, 4830 Invalid, 485 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2024-11-14 03:12:47,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2024-11-14 03:12:47,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 3038. [2024-11-14 03:12:47,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3038 states, 1640 states have (on average 1.2408536585365855) internal successors, (2035), 1680 states have internal predecessors, (2035), 1230 states have call successors, (1230), 168 states have call predecessors, (1230), 167 states have return successors, (1247), 1205 states have call predecessors, (1247), 1230 states have call successors, (1247) [2024-11-14 03:12:47,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3038 states to 3038 states and 4512 transitions. [2024-11-14 03:12:47,547 INFO L78 Accepts]: Start accepts. Automaton has 3038 states and 4512 transitions. Word has length 136 [2024-11-14 03:12:47,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:47,548 INFO L471 AbstractCegarLoop]: Abstraction has 3038 states and 4512 transitions. [2024-11-14 03:12:47,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-14 03:12:47,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3038 states and 4512 transitions. [2024-11-14 03:12:47,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-14 03:12:47,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:47,583 INFO L215 NwaCegarLoop]: trace histogram [8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:12:47,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:12:47,585 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:12:47,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:47,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1313272383, now seen corresponding path program 1 times [2024-11-14 03:12:47,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:12:47,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699215129] [2024-11-14 03:12:47,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:47,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:12:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:53,325 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-14 03:12:53,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:12:53,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699215129] [2024-11-14 03:12:53,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699215129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:12:53,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:12:53,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:12:53,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944235520] [2024-11-14 03:12:53,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:12:53,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:12:53,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:12:53,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:12:53,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:12:53,331 INFO L87 Difference]: Start difference. First operand 3038 states and 4512 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-14 03:12:55,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:12:57,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:13:05,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:13:05,304 INFO L93 Difference]: Finished difference Result 8059 states and 11974 transitions. [2024-11-14 03:13:05,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:13:05,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 194 [2024-11-14 03:13:05,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:13:05,360 INFO L225 Difference]: With dead ends: 8059 [2024-11-14 03:13:05,360 INFO L226 Difference]: Without dead ends: 5032 [2024-11-14 03:13:05,387 INFO L431 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 [2024-11-14 03:13:05,388 INFO L432 NwaCegarLoop]: 2383 mSDtfsCounter, 1736 mSDsluCounter, 2271 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 4654 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:13:05,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1736 Valid, 4654 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 507 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2024-11-14 03:13:05,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5032 states. [2024-11-14 03:13:05,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5032 to 5028. [2024-11-14 03:13:05,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 2700 states have (on average 1.2362962962962962) internal successors, (3338), 2758 states have internal predecessors, (3338), 2045 states have call successors, (2045), 283 states have call predecessors, (2045), 282 states have return successors, (2062), 2012 states have call predecessors, (2062), 2045 states have call successors, (2062) [2024-11-14 03:13:05,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 7445 transitions. [2024-11-14 03:13:05,828 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 7445 transitions. Word has length 194 [2024-11-14 03:13:05,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:13:05,829 INFO L471 AbstractCegarLoop]: Abstraction has 5028 states and 7445 transitions. [2024-11-14 03:13:05,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-14 03:13:05,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 7445 transitions. [2024-11-14 03:13:05,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-14 03:13:05,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:13:05,857 INFO L215 NwaCegarLoop]: trace histogram [11, 7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:13:05,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:13:05,858 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:13:05,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:13:05,858 INFO L85 PathProgramCache]: Analyzing trace with hash 461028216, now seen corresponding path program 1 times [2024-11-14 03:13:05,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:13:05,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360072489] [2024-11-14 03:13:05,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:13:05,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:13:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:13:11,586 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-11-14 03:13:11,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:13:11,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360072489] [2024-11-14 03:13:11,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360072489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:13:11,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:13:11,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:13:11,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632510913] [2024-11-14 03:13:11,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:13:11,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:13:11,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:13:11,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:13:11,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:13:11,593 INFO L87 Difference]: Start difference. First operand 5028 states and 7445 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-14 03:13:13,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:13:15,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:13:23,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:13:23,000 INFO L93 Difference]: Finished difference Result 12039 states and 17839 transitions. [2024-11-14 03:13:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:13:23,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 241 [2024-11-14 03:13:23,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:13:23,061 INFO L225 Difference]: With dead ends: 12039 [2024-11-14 03:13:23,061 INFO L226 Difference]: Without dead ends: 7022 [2024-11-14 03:13:23,093 INFO L431 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 [2024-11-14 03:13:23,094 INFO L432 NwaCegarLoop]: 3887 mSDtfsCounter, 1744 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 6142 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:13:23,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 6142 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 643 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2024-11-14 03:13:23,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7022 states. [2024-11-14 03:13:23,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7022 to 7018. [2024-11-14 03:13:23,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7018 states, 3759 states have (on average 1.2343708433093907) internal successors, (4640), 3835 states have internal predecessors, (4640), 2860 states have call successors, (2860), 399 states have call predecessors, (2860), 398 states have return successors, (2877), 2819 states have call predecessors, (2877), 2860 states have call successors, (2877) [2024-11-14 03:13:23,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7018 states to 7018 states and 10377 transitions. [2024-11-14 03:13:23,714 INFO L78 Accepts]: Start accepts. Automaton has 7018 states and 10377 transitions. Word has length 241 [2024-11-14 03:13:23,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:13:23,715 INFO L471 AbstractCegarLoop]: Abstraction has 7018 states and 10377 transitions. [2024-11-14 03:13:23,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-14 03:13:23,716 INFO L276 IsEmpty]: Start isEmpty. Operand 7018 states and 10377 transitions. [2024-11-14 03:13:23,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-11-14 03:13:23,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:13:23,746 INFO L215 NwaCegarLoop]: trace histogram [13, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:13:23,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:13:23,746 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:13:23,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:13:23,747 INFO L85 PathProgramCache]: Analyzing trace with hash 366745845, now seen corresponding path program 1 times [2024-11-14 03:13:23,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:13:23,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640129220] [2024-11-14 03:13:23,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:13:23,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:13:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:13:29,761 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2024-11-14 03:13:29,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:13:29,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640129220] [2024-11-14 03:13:29,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640129220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:13:29,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:13:29,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:13:29,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165549873] [2024-11-14 03:13:29,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:13:29,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:13:29,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:13:29,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:13:29,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:13:29,768 INFO L87 Difference]: Start difference. First operand 7018 states and 10377 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-11-14 03:13:31,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:13:34,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:13:40,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:13:40,426 INFO L93 Difference]: Finished difference Result 16235 states and 24000 transitions. [2024-11-14 03:13:40,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:13:40,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 302 [2024-11-14 03:13:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:13:40,513 INFO L225 Difference]: With dead ends: 16235 [2024-11-14 03:13:40,513 INFO L226 Difference]: Without dead ends: 9228 [2024-11-14 03:13:40,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:13:40,555 INFO L432 NwaCegarLoop]: 3979 mSDtfsCounter, 2262 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2262 SdHoareTripleChecker+Valid, 5904 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:13:40,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2262 Valid, 5904 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 623 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2024-11-14 03:13:40,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9228 states. [2024-11-14 03:13:41,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9228 to 9224. [2024-11-14 03:13:41,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9224 states, 4942 states have (on average 1.2337110481586402) internal successors, (6097), 5039 states have internal predecessors, (6097), 3748 states have call successors, (3748), 535 states have call predecessors, (3748), 533 states have return successors, (3765), 3695 states have call predecessors, (3765), 3748 states have call successors, (3765) [2024-11-14 03:13:41,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9224 states to 9224 states and 13610 transitions. [2024-11-14 03:13:41,527 INFO L78 Accepts]: Start accepts. Automaton has 9224 states and 13610 transitions. Word has length 302 [2024-11-14 03:13:41,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:13:41,530 INFO L471 AbstractCegarLoop]: Abstraction has 9224 states and 13610 transitions. [2024-11-14 03:13:41,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-11-14 03:13:41,531 INFO L276 IsEmpty]: Start isEmpty. Operand 9224 states and 13610 transitions. [2024-11-14 03:13:41,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-11-14 03:13:41,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:13:41,566 INFO L215 NwaCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:13:41,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:13:41,566 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:13:41,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:13:41,568 INFO L85 PathProgramCache]: Analyzing trace with hash -148416614, now seen corresponding path program 1 times [2024-11-14 03:13:41,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:13:41,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486624681] [2024-11-14 03:13:41,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:13:41,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:13:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:13:47,125 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2024-11-14 03:13:47,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:13:47,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486624681] [2024-11-14 03:13:47,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486624681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:13:47,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:13:47,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:13:47,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127415648] [2024-11-14 03:13:47,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:13:47,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:13:47,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:13:47,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:13:47,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:13:47,128 INFO L87 Difference]: Start difference. First operand 9224 states and 13610 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2024-11-14 03:13:49,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:13:51,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:13:55,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:13:55,576 INFO L93 Difference]: Finished difference Result 27213 states and 40159 transitions. [2024-11-14 03:13:55,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:13:55,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 323 [2024-11-14 03:13:55,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:13:55,720 INFO L225 Difference]: With dead ends: 27213 [2024-11-14 03:13:55,720 INFO L226 Difference]: Without dead ends: 18000 [2024-11-14 03:13:55,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:13:55,781 INFO L432 NwaCegarLoop]: 2307 mSDtfsCounter, 2243 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2243 SdHoareTripleChecker+Valid, 4589 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:13:55,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2243 Valid, 4589 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2024-11-14 03:13:55,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18000 states. [2024-11-14 03:13:57,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18000 to 17998. [2024-11-14 03:13:57,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17998 states, 9640 states have (on average 1.2344398340248963) internal successors, (11900), 9825 states have internal predecessors, (11900), 7309 states have call successors, (7309), 1051 states have call predecessors, (7309), 1048 states have return successors, (7345), 7209 states have call predecessors, (7345), 7309 states have call successors, (7345) [2024-11-14 03:13:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17998 states to 17998 states and 26554 transitions. [2024-11-14 03:13:57,223 INFO L78 Accepts]: Start accepts. Automaton has 17998 states and 26554 transitions. Word has length 323 [2024-11-14 03:13:57,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:13:57,224 INFO L471 AbstractCegarLoop]: Abstraction has 17998 states and 26554 transitions. [2024-11-14 03:13:57,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2024-11-14 03:13:57,224 INFO L276 IsEmpty]: Start isEmpty. Operand 17998 states and 26554 transitions. [2024-11-14 03:13:57,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-14 03:13:57,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:13:57,253 INFO L215 NwaCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:13:57,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:13:57,254 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:13:57,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:13:57,255 INFO L85 PathProgramCache]: Analyzing trace with hash 383831529, now seen corresponding path program 1 times [2024-11-14 03:13:57,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:13:57,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321669342] [2024-11-14 03:13:57,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:13:57,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:14:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:14:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-14 03:14:04,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:14:04,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321669342] [2024-11-14 03:14:04,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321669342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:14:04,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176063269] [2024-11-14 03:14:04,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:14:04,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:14:04,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:14:04,163 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:14:04,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:14:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:14:10,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 4554 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 03:14:11,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:15:19,844 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2024-11-14 03:15:19,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:15:19,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176063269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:15:19,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:15:19,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-14 03:15:19,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784730625] [2024-11-14 03:15:19,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:15:19,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:15:19,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:15:19,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:15:19,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:15:19,847 INFO L87 Difference]: Start difference. First operand 17998 states and 26554 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-14 03:15:21,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:15:24,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:15:26,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:15:28,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:15:55,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:15:55,006 INFO L93 Difference]: Finished difference Result 31495 states and 46481 transitions. [2024-11-14 03:15:55,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:15:55,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) Word has length 329 [2024-11-14 03:15:55,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:15:55,250 INFO L225 Difference]: With dead ends: 31495 [2024-11-14 03:15:55,251 INFO L226 Difference]: Without dead ends: 31493 [2024-11-14 03:15:55,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:15:55,275 INFO L432 NwaCegarLoop]: 3093 mSDtfsCounter, 1667 mSDsluCounter, 9138 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 12231 SdHoareTripleChecker+Invalid, 2310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:15:55,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 12231 Invalid, 2310 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2306 Invalid, 4 Unknown, 0 Unchecked, 32.6s Time] [2024-11-14 03:15:55,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31493 states. [2024-11-14 03:15:58,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31493 to 31477. [2024-11-14 03:15:58,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31477 states, 16790 states have (on average 1.2334723049434186) internal successors, (20710), 17152 states have internal predecessors, (20710), 12840 states have call successors, (12840), 1868 states have call predecessors, (12840), 1846 states have return successors, (12912), 12600 states have call predecessors, (12912), 12840 states have call successors, (12912) [2024-11-14 03:15:58,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31477 states to 31477 states and 46462 transitions. [2024-11-14 03:15:58,855 INFO L78 Accepts]: Start accepts. Automaton has 31477 states and 46462 transitions. Word has length 329 [2024-11-14 03:15:58,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:15:58,856 INFO L471 AbstractCegarLoop]: Abstraction has 31477 states and 46462 transitions. [2024-11-14 03:15:58,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-14 03:15:58,856 INFO L276 IsEmpty]: Start isEmpty. Operand 31477 states and 46462 transitions. [2024-11-14 03:15:58,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-14 03:15:58,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:15:58,920 INFO L215 NwaCegarLoop]: trace histogram [15, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:15:58,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:15:59,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7f4711-7de2-4794-81e5-77db6c24cfa6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:15:59,122 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:15:59,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:15:59,122 INFO L85 PathProgramCache]: Analyzing trace with hash 135812702, now seen corresponding path program 1 times [2024-11-14 03:15:59,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:15:59,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809786047] [2024-11-14 03:15:59,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:15:59,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:16:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:16:06,899 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2024-11-14 03:16:06,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:16:06,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809786047] [2024-11-14 03:16:06,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809786047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:16:06,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:16:06,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:16:06,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249686661] [2024-11-14 03:16:06,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:16:06,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:16:06,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:16:06,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:16:06,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:16:06,904 INFO L87 Difference]: Start difference. First operand 31477 states and 46462 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 03:16:08,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:16:11,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:16:22,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:16:22,036 INFO L93 Difference]: Finished difference Result 69827 states and 103163 transitions. [2024-11-14 03:16:22,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:16:22,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 352 [2024-11-14 03:16:22,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:16:22,504 INFO L225 Difference]: With dead ends: 69827 [2024-11-14 03:16:22,504 INFO L226 Difference]: Without dead ends: 38361 [2024-11-14 03:16:22,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:16:22,801 INFO L432 NwaCegarLoop]: 3888 mSDtfsCounter, 1755 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 6151 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:16:22,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 6151 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 647 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2024-11-14 03:16:22,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38361 states. [2024-11-14 03:16:26,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38361 to 38351. [2024-11-14 03:16:26,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38351 states, 20444 states have (on average 1.2334181177851693) internal successors, (25216), 20876 states have internal predecessors, (25216), 15658 states have call successors, (15658), 2274 states have call predecessors, (15658), 2248 states have return successors, (15730), 15376 states have call predecessors, (15730), 15658 states have call successors, (15730) [2024-11-14 03:16:26,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38351 states to 38351 states and 56604 transitions. [2024-11-14 03:16:26,872 INFO L78 Accepts]: Start accepts. Automaton has 38351 states and 56604 transitions. Word has length 352 [2024-11-14 03:16:26,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:16:26,873 INFO L471 AbstractCegarLoop]: Abstraction has 38351 states and 56604 transitions. [2024-11-14 03:16:26,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 03:16:26,873 INFO L276 IsEmpty]: Start isEmpty. Operand 38351 states and 56604 transitions. [2024-11-14 03:16:26,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-14 03:16:26,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:16:26,937 INFO L215 NwaCegarLoop]: trace histogram [14, 13, 13, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:16:26,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:16:26,939 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:16:26,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:16:26,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1946131890, now seen corresponding path program 1 times [2024-11-14 03:16:26,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:16:26,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091565928] [2024-11-14 03:16:26,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:16:26,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms